Exhibit 10.34

ADA
ENVIRONMENTAL SOLUTIONS, LLCEMPLOYMENT AGREEMENT

THIS AGREEMENT
made and entered into this 1st day of March, 2003, by and between ADA
Environmental Solutions, LLC, a Colorado limited liability company, whose
principal offices are located at 8100 SouthPark Way, Unit B, Littleton, Colorado
80120 (the Company), and Sharon Sjostrom (the Employee)
whose address is 2416 Emerson Street, Denver, CO 80205.

RECITALS:

| | A. | The
Company has made Employee an offer of employment.
| | -- | -----------------------------------------------------

| | B. | Employee
desires to accept the offer.
| | -- | -------------------------------------

| | C. | The
Company and Employee desire to enter into this Agreement to set forth the terms and
conditions of the employment.
| | -- | ---------------------------------------------------------------------------------------------------------------------

NOW,
THEREFORE in consideration of the premises and the mutual covenants and
agreements hereinafter set forth and for other good and valuable consideration
the receipt and sufficiency of which are hereby acknowledged, the parties,
intending to be legally bound, hereby agree as follows:

| | 1. | Definitions.
| | -- | ------------

| | Capitalized
terms are used herein with the meanings as specified in Paragraph 6 hereof.
| | ---------------------------------------------------------------------------------------

| | 2. | Employment.
| | -- | -----------

| | The  Company
hereby employs the Employee and Employee hereby accepts such employment upon the  terms
and conditions set forth herein.
| | -------------------------------------------------------------------------------------------------------------------------------------

| | 3. | Position,
Duties and Authority.
| | -- | -------------------------------

| | During
the term of this Agreement, Employee shall be employed as Director of Technology
Development.
| | ----------------------------------------------------------------------------------------------------

| | 4. | Obligations
of Employee.
| | -- | ------------------------

| | Employee
hereby agrees that he will devote a minimum of 40 hours per week to the  fulfillment of
his obligations hereunder.
| | ---------------------------------------------------------------------------------------------------------------------------

| | 5. | Compensation
and Benefits.
| | -- | --------------------------

| | In
consideration of Employees agreement to be employed by the Company and as
reasonable compensation for services to be rendered hereunder, the Company  agrees as
follows:
| | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | a) | Benefits.
Employee
shall be entitled to the standard benefits and perquisites from time to time  available
to full-time employees of the Company as outlined in the Policy and  Procedures Manual
and with additional details listed in 5c-f.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | b) | Regular
Compensation. The
Company shall pay Employee an annualized salary  of $78,208.00, beginning March 31, 2003,
payable bi-weekly as part of the  Companys normal payroll procedures. On September
1, 2003, the six-month  anniversary of the acquisition of EMC Engineering, Company shall
raise  Employees annual salary to $90,000, payable bi-weekly as part of the  Companys
normal payroll procedures. Increases in compensation, if any,  shall be at the discretion
of the Managers of the Company.
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| | c) | Option
Benefit. Upon the execution of this agreement, Employee will receive an  option for 7,000
shares of Company stock at a set price of $2.50.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------

| | d) | Health
Benefits. Company shall pay for the medical, dental, and vision insurance  of the
Employee according to the Companys health benefit plans available  to full-time
employees. Company will cover Employee dental expenses until the  employee is eligible to
join the dental plan beginning on the first of the month  following 3 months of
employment up to $1,000. The Employee shall also be  entitled to the standard benefits
and perquisites from time to time available to  full-time employees as outlined in the
Policy and Procedures Manual.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | e) | Retirement
Benefits. Upon execution of this agreement, Employee will be  immediately vested in
Companys retirement plan.
| | -- | -------------------------------------------------------------------------------------------------------------------------

| | f) | Vacation.
As of March 1, 2003, Employee will receive seven years towards her  tenure and will be
awarded the amount of vacation awarded to any employee of  this tenure according to the
Policy and Procedures Manual.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 6. | Definitions.
| | -- | ------------

| | a) | Invention shall
mean any idea, discovery, article, process,  formulation, composition, combination,
design, modification or improvement,  whether or not patentable.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | b) | Copyright
Works shall mean all literary works, graphic works,  pictorial works and other
creative works for which copyright protection may be  obtained, including without
limitation proposals and computer software  /documentation.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | c) | Confidential
Subject Matter shall mean all Inventions,  Copyright Works, data,
specifications, know-how, lists, printed materials,  technical information,
cost/pricing/marketing information and other subject  matter that is not available to the
general public in a substantially identical  form without restriction.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 7. | Disclosure/Ownership
of Invention and Confidential Subject Matter.
| | -- | ------------------------------------------------------------------

| | a) | Prior
to EmploymentEmployee
agrees that Attachment A provides adequate description and disclosure of  Inventions and
Confidential Information considered owned by Employee or  third-party with whom Employee
is contractually bound prior to becoming employed  by Company. Throughout the term of
this agreement and following its termination,  even in the case of breach of contract by
either party, the items identified in  Attachment A are considered the property of
Employee (Employee  Intellectual Property) or of a third-party (Third
Party Intellectual  Property). Although Attachment A may not be all inclusive of
all  intellectual property owned by Employee or third parties, any ownership rights
Employee wishes to defend must be itemized in Attachment A. Employee may amend
Attachment A at any time as long as the claim can be supported with  documentation
demonstrating the rightful ownership of the Employee or third  party.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

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| | b) | During
Employment. Employee agrees that during the term of  Employees employment with
Company, Employee will immediately disclose in  writing to Company all Inventions and
Confidential Subject Matter which (i) is  conceived or generated by Employee alone and/or
jointly with others, and (ii)  relates to the actual or anticipated business of the
Company and/or relates to  the actual or anticipated research or development activities
of the Company  and/or is otherwise suggested by or results from any activity performed
on  behalf of the Company. Employee acknowledges and agrees that immediately upon
conception or generation, whichever occurs earlier, all Inventions and  Confidential
Subject Matter disclosed and to be disclosed by Employee to Company  during the term of
Employees employment with Company will be the sole and  exclusive property of the
Company.In the
event that the Employee, during her term of employment at the Company, develops
a derivative of the Employee Intellectual Property, or an Invention of which the
Employee Intellectual Property is a component, the new Invention or Confidential
Subject Matter shall be considered the joint property of the Company and the
Employee and the parties must execute a separate agreement defining the Employee
and Company joint ownership and an agreed upon royalty-free license arrangement
for the new Invention/Confidential Subject Matter and any of its derivatives
(Joint Ownership Agreement).In the
event that the Employee, during her term of employment at the Company, develops
a derivative of the Third Party Intellectual Property, or an Invention of which
the Third Party Intellectual Property is a component, the ownership of the new
Invention or Confidential Subject Matter defined by the pre-existing agreements
or obligations as defined in Attachment A, if any.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | c) | Post
Employment. Employee further agrees that, during the two (2) year  period following
any termination of Employees employment with the Company,  Employee will
immediately disclose in writing to the Company all Inventions and  Confidential Subject
Matter which (i) is conceived or generated by Employee  alone and/or jointly with others,
and (ii) is based upon or otherwise derived  from any Inventions and/or Confidential
Subject Matter of the Company. Employee  acknowledges and agrees that immediately upon
conception or generation,  whichever occurs earlier, all Inventions and Confidential
Subject Matter to be  disclosed by Employee to Company during the two (2) year period
following the  termination of Employees employment with Company will become the
sole and  exclusive property of the Company.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | Employee
acknowledges and agrees that  immediately upon conception or generation,  whichever
occurs earlier, all Inventions and  Confidential Subject Matter to be  disclosed by
Employee to Company during the two (2)  year period following the  termination of Employees
employment with Company AND  which has no basis in  or connection to the Employee
Intellectual Property or Third Party  Intellectual  Property will become the sole and
exclusive property of the Company.
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| | Company
acknowledges  and agrees that immediately upon conception or generation,  whichever
occurs  earlier,  all Inventions and Confidential Subject Matter to be  disclosed by
Employee to  Company  during the two (2) year period following the  termination of
Employees  employment  with Company AND which has basis in or  connection to the
Employee  Intellectual Property  or any Company  Invention/Confidential Subject Matter
which is  based on or connected to  Employee  Intellectual Property will become the joint
property  of Employee and Company,  pursuant to the related Joint Ownership Agreement.
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 8. | Assignment
of Inventions and Confidential Subject Matter/ Documentation/ Commercialization.
| | -- | -------------------------------------------------------------------------------------------

| | a) | Assignment.Employee
hereby assigns to Company the Employees entire right, title and interest  in and to
all Inventions and Confidential Subject Matter disclosed and to be  disclosed by Employee
to Company pursuant to Sections 7 (a), (b) and (c).
| | -- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | b) | Documentation.Employee
agrees to execute, cooperate in the preparation of and deliver to the Company,  both
during the term of Employees employment with the Company and  thereafter, any and
all documents deemed necessary by the Company for the  Company to protect, maintain,
preserve and enjoy the full right, title  and interest to all Inventions and Confidential
Subject Matter disclosed and to  be disclosed by Employee to Company, including without
limitation, the execution  and delivery of patent assignments and, at Companys
legal expense, the  preparation of patent applications.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | c) | Commercialization.Employee
acknowledges and agrees that with respect to all Inventions and Confidential  Subject
Matter transferred by Employee to Company, Company is not obligated to  commercialize the
same, and that if Employee desires to independently  commercialize any of said inventions
and/or Confidential Subject Matter,  Employee must request and obtain a written license
from Company beforehand. If  this license request is for Inventions/Confidential Subject
Matter wholly owned  by the Company, the Company may decline such request at its sole
discretion. If  the license request is for Inventions/Confidential Subject Matter based
on or  derived from Employee Intellectual Property, the Company is obligated to honor
the license request pursuant to the terms outlined in the related Joint  Ownership
Agreement.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 9. | Copyright
Works.
| | -- | ----------------

| | Employee
agrees that all Copyright Works and contributions to Copyright Works prepared by
Employee within the scope of Employees employment with the Company will be  deemed
works for hire and will be owned by the Company, and Employee  agrees to
execute all documents deemed necessary by the Company for the Company  to protect,
maintain, preserve and enjoy the Companys rights in such  Copyright Works and
contributions. Employee further agrees that unless expressly  authorized by the Company
in writing, Employee will not independently prepare or  otherwise distribute or publish
any Copyright Work that embodies any  Confidential Subject Matter owned by the Company or
held in Confidence by the  Company for any third party, including without limitation, all
Confidential  Subject Matter disclosed and to be disclosed by Employee to the Company.
Notwithstanding the foregoing, the Company may not prevent Employee from sharing
Employee Intellectual Property with any third party at her sole discretion.
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| | 10. | Written
Records.
| | --- | ----------------

| | Employee
agrees that to the extent reasonably possible, Employee will maintain written  records of
all Inventions and Confidential Subject Matter conceived or generated  by Employee in the
course of Employees performance of services for the  Company, which records will be
the exclusive property of the Company and will be  available to the Company at all times.
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 11. | Restrictive
Obligations Relating to Confidential Subject Matter.
| | --- | ----------------------------------------------------------------

| | a) | Obligations
to Company.Employee
agrees to maintain in strict confidence, and agrees not to use, disclose,
reproduce or publish, except to the extent necessary in the course of the
Employees performance of services for the Company and/or as otherwise
authorized by Company, any Confidential Subject Matter owned by the Company or
held in confidence by the Company for any third-party, including without
limitation, all Confidential Subject Matter disclosed and to be disclosed by
Employee to the Company.
| | -- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | b) | Prior
Obligations to Third-Parties.Employee  agrees that, in the course of Employees
employment with the Company,  Employee will not use or disclose any third party
Confidential Subject Matter  with respect to which Employee, prior to Employees
initiation of  employment with the Company, assumed obligations restricting such use or
disclosure.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 12. | Conflicting
Obligations.
| | --- | ------------------------

| | a) | Prior
Obligations. Employee acknowledges and agrees that Employee is  under no obligations
to any third party which conflict or may conflict, in any  way, with any of the Employees
obligations hereunder.
| | -- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | b) | Assumption
of Obligations.Employee  agrees that Employee will not assume any obligations to any
third-party that  would conflict with any of Employees obligation hereunder.
Employee  further agrees that, during the term of Employees employment with the
Company, Employee will not compete, and will not provide services to others who  compete
with the Company in the research, development, production, marketing or  servicing of any
product, process or service with respect to which the Company  is involved.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 13. | Employers
Obligations On Termination Of Employment
| | --- | ---------------------------------------------------

| | a) | Upon
any termination of Employees employment, companys obligations  under Sections
7 through 9 of this agreement will continue.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------

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| | If
during the  first 180 days of the term of this agreement Employee should fail or  refuse
to perform  the services herein contemplated, or should engage in gainful  employment
with  another  employer both Company and Employee will be obligated to  negotiate the
reversal  of  Companys acquisition of EMC Engineering LLC  (Employees prior
company)  pursuant to the terms defined in the Purchase  Agreement. This right to
negotiate  reversal of the acquisition will terminate at  an earlier time if Employee
exercises her  option benefit described in section  5c.
| | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 14. | Employee
Obligations On Any Termination Of Employment
| | --- | -----------------------------------------------------

| | a) | Continuing
Obligations. Employees obligations under Sections 7  through 11 of this
Agreement will continue after any termination of  Employees employment with the
Company.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | b) | Submission
of Materials.Upon  any termination of Employees employment with Company,
Employee will submit  to the Company all materials within Employees possession that
constitute  or include Confidential Subject Matter owned by the Company or held in
confidence by the Company for any third-party. Notwithstanding the foregoing,  Employee
may retain copies of materials related to Copyright Works, Inventions  and Confidential
Subject Matter that is legally considered to be joint property  of the Company and
Employee pursuant to this agreement or any subsequent Joint  Ownership Agreement.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | c) | Exit
Interview. Upon termination of Employees employment with the  company, Employee
will attend an exit interview with an appropriate  representative of the Company to
review the continuing obligations of Employee  hereunder.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | 15. | Miscellaneous.
| | --- | --------------

| | a) | Binding-Effect/
Assignability.This  Agreement is not assignable by Employee and will be binding upon
Employees  heirs, executors, administrators and other legal representatives.
Employee  agrees that the Company may freely assign this Agreement to any
successor-in-interest of the Company.
| | -- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | b) | Severability.Should
any provision of this Agreement be determined by a court of competent  jurisdiction to
violate or contravene any applicable law or policy, such  provision will be severed and
modified to the extent necessary to comply with  the applicable law or policy, and such
modified provision and the remainder of  the provisions hereof will continue in full
force and effect.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | c) | Waiver.Any
delay or omission on the part of Company to exercise any right under this  Agreement will
not automatically operate as a waiver of such right or any other  right; and that a
waiver of any right of the Company hereunder on one occasion  will not be construed as a
bar to or waiver of any right on any future occasion.
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| | d) | Controlling
Law.This  Agreement will be interpreted under and enforced in accordance with the
laws of  the State of Colorado.
| | -- | -----------------------------------------------------------------------------------------------------------------------------

| | e) | Modification.This
Agreement may only be modified by the mutual written agreement of Employee and  Company.
| | -- | ----------------------------------------------------------------------------------------------------------

| | f) | Notices.Any
notice or communication required or permitted to be given by this Agreement  shall be
deemed given and effective when delivered personally, or when sent by  registered or
certified mail, postage prepaid, addressed as follows (such  addresses for giving of
notice may be changed by notice similarly given):
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | (i)
If to the Company:
| | ----------------------

| | ADA
Environmental Solutions, LLCAttention: Human Resources8100 SouthPark  Way, Unit
BLittleton, Colorado 80120
| | --------------------------------------------------------------------------------------------------------------

| | (ii)
If to Employee:
| | --------------------

| | Sharon
Sjostrom2416 Emerson StreetDenver, CO 80205
| | --------------------------------------------------

| | g) | Arbitration.Any
difference, claims or matters in dispute arising between Employee and the  Company out of
this Agreement or connected with Employees employment shall  be submitted by
Employee and the Company to binding arbitration by a single  arbitrator selected by the
mutual agreement of the parties from members of the  Judicial Arbiter Group of Denver,
Colorado, or its successor. The arbitration  shall be governed by the rules and
regulations of the Judicial Arbiter Group or  its successor and the pertinent
provisions of the laws of the State of  Colorado relating to arbitration. The decision of
the arbitrator may be entered  as a judgment in any court in the State of Colorado or
elsewhere. The prevailing  party shall be entitled to receive reasonable attorneys fees
incurred in  connection with such arbitration in addition to such other costs and
expenses as  the arbitrator may award.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | h) | At-Will
Employment.Employment  with the Company is at will, meaning that both the Company and
the Employee have  the right to terminate the work relationship at any time and for any
reason.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | i) | Entire Assignment. This Agreement together with the exhibits hereto constitute the entire
agreement between the parties and their affiliates with respect to the subject matter
hereof, supersedes all prior and contemporaneous agreements or understandings relating
to said subject matter, and no amendment hereof shall be deemed valid unless in writing
and signed by the parties hereto.
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IN
WITNESS WHEREOF, the parties have signed or caused this Agreement to be signed
by their duly authorized officers as of the day and year first above written.

| | ADA Environmental Solutions, LLCBy:
| | -----------------------------------

| | /s/    Michael D. Durham Michael D. Durham, President
| | -----------------------------------------------------

| | /s/   Sharon Sjostrom
Sharon Sjostrom, Employee
| | -----------------------------------------------

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EXHIBIT
A

Inventions
and Confidential Information considered owned by Employee or third-party with
whom Employee is contractually bound prior to becoming employed by CompanyEmployee:

| | Control
logic, software, and mechanical design of mercury SCEMs designed by Employee  prior to
employment at Company
| | --------------------------------------------------------------------------------------------------------------------

Third Parties

| | Apogee
Scientific:
| | ------------------

| | Information
related to Apogees proprietary mercury sample conditioning system. In particular,
the catalyst design and operation.
| | ---------------------------------------------------------------------------------------------------------------------------------

| | Design
and operation of Apogees QSIS mercury extraction probe.
| | ---------------------------------------------------------------

| | EPRI:
| | -----

| | Data
collected and technology developed under EPRI contracts while employed at Apogee
Scientific or EMC Engineering. Technology includes:
| | -----------------------------------------------------------------------------------------------------------------------------------------

| | Mercury
Control by Adsorption Processes (MerCAPTM)
| | --------------------------------------------------

| | Chemical  additives
for enhanced mercury oxidation that have been evaluated during EPRI-funded  programs in
which employee participated
| | ---------------------------------------------------------------------------------------------------------------------------------------

| | Quick
SEM time averaging mercury monitor design
| | -----------------------------------------------

| | Data
includes results from tests conducted during EPRI-funded evaluations
| | -------------------------------------------------------------------------

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