New Mexico Administrative Code › Title 20 - ENVIRONMENTAL PROTECTION › Chapter 2 - AIR QUALITY (STATEWIDE) › Part 2 - DEFINITIONS › Section 20.2.2.7 - DEFINITIONS

Current through Register Vol. 35, No. 13, July 16, 2024
The following definitions apply to all Parts of Title 20,
				  Chapter 2 NMAC.
A. "Administrator"
				means the administrator of the United States environmental protection agency
				(US EPA) or his or her designee.
B.
				"Aerodynamic diameter" means the diameter of a sphere of unit density which
				behaves aerodynamically the same as the particle of the test substance. It is
				used to predict where particles of different size and density may be deposited
				in the respiratory tract.
C. "Air
				contaminant" means any airborne substance, including but not limited to, any
				particulate matter, fly ash, dust, fumes, gas, mist, smoke, vapor,
				micro-organisms, radioactive material, any combination thereof or any decay or
				reaction product thereof.
D. "Air
				pollution" means the emission, except as such emission occurs in nature, into
				the outdoor atmosphere of one or more air contaminants in such quantities and
				duration as may with reasonable probability injure human health, animal or
				plant life, or as may unreasonable interfere with the public welfare,
				visibility or the reasonable use of property.
E. "Asbestos" includes chrysolite,
				crocidolite, amosite, anthophylite, tremolite, and actinolite.
F. "Board" means the New Mexico environmental
				improvement board or its successor agency or authority.
G. "Carbon dioxide" means the chemical
				compound containing one atom of carbon and two atoms of oxygen.
H. "Carbon monoxide" means the chemical
				compound containing one atom of carbon and one atom of oxygen.
I. "Department" means the New Mexico
				environment department or its successor agency or authority, as represented by
				the department secretary or his or her designee.
J. "Federal act" means the Federal Clean Air
				Act, as amended,
				42 U.S.C.
				sections 7401 et seq.
K. "Flue" means, any duct for air, gases, or
				the like, such as a stack or chimney.
L. "Fugitive dust" or "fugitive particulate
				matter" means particulate emissions which escape to the atmosphere due to
				leakage; materials handling, transfer or storage; travel over unpaved roads or
				parking areas; or other industrial activities, and which are not ducted through
				exhaust systems.
M. "Greenhouse
				gas" means any of the following: carbon dioxide, methane, nitrous oxide,
				hydrofluorocarbons, perfluorocarbons or sulfur hexafluoride.
N. "Heavy metal" means any metal having an
				atomic number greater than 21.
O.
				"Hydrofluorocarbons" means gaseous chemical compounds containing only hydrogen,
				carbon, and fluorine atoms.
P.
				"Hydrogen sulfide" means the chemical compound containing two atoms of hydrogen
				and one atom of sulfur.
Q. "Kraft
				pulp" means the fibrous cellulose material produced in a kraft mill.
R. "Lead" means elemental lead; alloys in
				which one of the elements is lead; or compounds containing lead, which are
				measured as elemental lead.
S.
				"Methane" means the chemical compound containing one atom of carbon and four
				atoms of hydrogen.
T. "mg/m3" means
				milligrams per cubic meter.
U.
				"Nitrogen dioxide" means the chemical compound containing one atom of nitrogen
				and two atoms of oxygen, for the purposes of ambient determinations. The term
				"nitrogen dioxide," for the purposes of stack emissions monitoring, shall
				include nitrogen dioxide (the chemical compound containing one atom of nitrogen
				and two atoms of oxygen), nitric oxide (the chemical compound containing one
				atom of nitrogen and one atom of oxygen), and other oxides of nitrogen which
				may test as nitrogen dioxide.
V.
				"Nitrous oxide" means the chemical compound containing two atoms of nitrogen
				and one atom of oxygen.
W.
				"Non-methane hydrocarbons" means any combination of hydrocarbons (chemical
				compounds consisting of hydrogen and carbon) excluding only the molecule
				methane.
X. "Ozone" means the
				chemical compound having the molecular composition of three oxygen
				atoms.
Y. "Particulate matter"
				means any airborne, finely divided solid or liquid material with an aerodynamic
				diameter smaller than 100 micrometers.
Z. "Particulate matter emissions" means all
				finely divided solid or liquid material, other than uncombined water, emitted
				to the ambient air as measured by: applicable reference methods; an equivalent
				or alternative method specified by the administrator; or a test method
				specified in the New Mexico state implementation plan.
AA. "Perfluorocarbons" means gaseous chemical
				compounds containing only carbon and fluorine atoms.
AB. "Person" means any individual;
				partnership; corporation; association; municipality; the state or political
				subdivision of the state; and any agency, department, or instrumentality of the
				United States and any of their officers, agents, or employees.
AC. "Photochemical oxidents" means those
				oxidizing chemical compounds which are the products of photo initiated
				reactions involving organic compounds and nitrogen oxides, consisting primarily
				of ozone and peroxyacetyl nitrate (PAN).
AD. "PM10" means particulate matter with an
				aerodynamic diameter less than or equal to a nominal 10 micrometers.
AE. "PM10 emissions" means finely divided
				solid or liquid material with an aerodynamic diameter less than or equal to a
				nominal 10 micrometers, emitted to the ambient air, as measured by: an
				applicable reference method; an equivalent or alternative method specified by
				the EPA administrator; or a test method specified in the New Mexico state
				implementation plan.
AF. "PM2.5"
				means particulate matter with an aerodynamic diameter less than or equal to a
				nominal 2.5 micrometers.
AG.
"PM2.5 emissions"
means finely divided solid or liquid material
				with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers,
				emitted to the ambient air, as measured by: an applicable reference method; an
				equivalent or alternative method specified by the EPA administrator; or a test
				method specified in the New Mexico state implementation plan.
AH. "ppm" means parts per million by
				volume.
AI. "Ringelmann scale"
				means the grading of opacity, appearance, density or shade of a smoke emission,
				in determining the light-obscuring power of smoke.
AJ. "Schedule of compliance" means a schedule
				or timetable, acceptable to the board, which clearly sets out in detail, the
				steps to be taken in achieving the objectives of a regulation or
				standard.
AK. "Secretary" means the
				secretary of the New Mexico environment department or his or her
				designee.
AL. "Smoke" means small
				gas-borne particles resulting from incomplete combustion, consisting
				predominantly, by not exclusively, of carbon, soot and combustible
				material.
AM. "Sulfur dioxide"
				means the chemical compound containing one atom of sulfur and two atoms of
				oxygen, for the purposes of ambient determinations. The term sulfur dioxide,
				for the purposes of stack emissions monitoring, shall include sulfur dioxide
				(chemical compound containing one atom of sulfur and two atoms of oxygen), and
				other oxides of sulfur which may test as sulfur dioxide.
AN. "Sulfur hexafluoride" means the chemical
				compound containing one atom of sulfur and six atoms of fluorine.
AO. "Total reduced sulfur" means any
				combination of sulfur compounds, except sulfur dioxide and free sulfur, which
				test as total reduced sulfur, including, but not limited to, hydrogen sulfide,
				methyl mercaptan, and ethyl mercaptan.
AP. "Total suspended particulates (TSP)"
				means particulate matter as measured by the method described in 40 CFR Part 50,
				Appendix B.
AQ. "ug/m3" means
				micrograms per cubic meter.
AR. "US
				EPA" means the United States environmental protection agency.
AS.
"Volatile organic compound
				(VOC)"
means any organic compound which participates in atmospheric
				photochemical reactions; that is, any organic compound other than those which
				the administrator designates as having negligible photochemical
				reactivity.