# Presentation: 201149

## Emissions, transport and deposition AFO Related Pollutants

**Region 7**** ****Environmental Services Division**

- An opportunity for inter-agency atmospheric research and collaboration
- Regional Perspective

**Michael F. Davis                  USEPA Region 7       Environmental Services Division 901 North 5****th**** Street                 Kansas City, KS  66101         913-551-7096                     davis.michael@epa.gov**

## Topics

- Ambient Air Monitoring Program
- History
- Cost
- National Monitoring Strategy
- NCore Network Design
- Redeployment of Air Monitoring Assets
- Scientific Review
- CASAC & NAS Comments
- What have we learned / What do we need?
- Opportunities for cross Agency collaboration

**Region 7**** ****Environmental Services Division**

**Region 7**** ****Environmental Services Division**

## Historical Network Deployment

**Region 7**** ****Environmental Services Division**

- _Historical Network Deployment_

## Monitoring Network Deployment

**Region 7**** ****Environmental Services Division**

- _Monitoring Network Deployment_

| 
Pollutant | Current # Sites | 
>60% NAAQS | Historical High # Sites  |
| --- | --- | --- | --- |
| Ozone | 1167 | >80 (8hr std) | 1167 (2002) |
| PM2.5 | 1200 | >75 (ann std) | 1200 (2002) |
| SO2 | 592 | <5 | 3158 (1975) |
| NO2 | 437 | <5 | 1944 (1975) |
| CO | 498 | <5 | 684  (1981) |
| Pb | 247 | <5 | 1393 (1981) |

## National Monitoring Strategy

- Regional Monitoring Network Assessment
- Redeployment of Air Monitoring Assets
- Reduction – Low value sites
- Reinvestment - High time resolution/sensitivity
- Regulatory Driver
- Revised CFR Part 58 - NCore

**Region 7**** ****Environmental Services Division**

**Region 7**** ****Environmental Services Division**

## NCore Measurements

**Level 2:**** ~ 75** **Multi-pollutant (MP) Sites,“Core Species” Plus Leveraging From PAMS, **
**Speciation Program, Air Toxics**

**Level 1****. 3-10 Master Sites Comprehensive Measurements, Advance Methods Serving Science and Technology Transfer Needs**

**Level 3****: Single Pollutant Sites (e.g.> 500 sites each for O3 and PM2.5 **
**Mapping Support**

**L1**

**NCore Measurements**

- _Minimum “Core” Level 2 Measurements_
**Continuous N,SO2,CO, PM2.5, PM10, O****3****; PM2.5 FRM, Meteorology (T,RH,WS,WD)**

## National Program DirectionNational Monitoring Strategy: Final Draft (04/2004)

- Part 58 Regulatory Package - NCore
- CASAC NAAMS Subcommittee (11/2003)
- NAS Report, “Air Quality Management in the United States” (07/2004)
- Greater Rural Deployment
- Ecological / Welfare Effects
- Coordination with research community

**Region 7**** ****Environmental Services Division**

**Region 7**** ****Environmental Services Division**

## What have we learned so far?

- Airmass history and climatology greatly affect pollutant composition and loading
- Apparent incremental contribution to fine PM aerosol from Central Plains
- Local and regional scale impacts of nitrogenous compounds vary by species
- Opportunities exist to leverage resources between environmental measurement programs

**Region 7**** ****Environmental Services Division**

**Region 7**** ****Environmental Services Division**

## IMPROVE PM 2.5 Ammonium Nitrate

- (http://vista.cira.colostate.edu/views/Web/AnnualSummary/ContourMaps.aspx)

- IMPROVE PM 2.5 Ammonium Nitrate
- 2002 1st Quarter

- IMPROVE PM2.5 Ammonium Nitrate
- 2003 1st Quarter

## IMPROVE PM2.5 Ammonium Nitrate

- (http://vista.cira.colostate.edu/views/Web/AnnualSummary/ContourMaps.aspx)

- IMPROVE PM2.5 Ammonium Nitrate
- 2002 2nd Quarter

- IMPROVE PM2.5 Ammonium Nitrate
- 2003 2nd Quarter

## Slide 11

## Greater Spatial Coverage Needed

- Ammonium Ion Dry Deposition

## Slide 13

## Relationship between NH3 emissions and secondary nitrate formation

- Trajectory-based upwind probability fields for high contributions from these sources suggest coal burning contributions for both, but also suggest importance of agricultural NH3 for aerosol nitrates.
**Rich Poirot – Vermont DEQ: NADP 25th Ammonia Workshop Presentation 10/22-24/2003 Washington DC**
**http://nadp.sws.uiuc.edu/nh4ws/**

- Relationship between NH3 emissions and secondary nitrate formation

## Continuous Nitrate Measurements at the St. Louis Supersite show clear influences from the Central United States

**Excerpted from: Megan N.S. Yu (2004), “Particulate Matter Ion Concentrations at the St. Louis – Midwest Supersite: Particle-into-Liquid Sampler (PILS) Measurements”, M.S. Thesis, Environmental Engineering, Washington University in St. Louis.**

**Continuous Nitrate Measurements at the St. Louis Supersite show clear influences from the Central United States**

## What type of Ammonia?

- Wet Deposition
- Dry Deposition
- Gaseous
- Ammonium Nitrate – Size Fraction?
- Ammonium Sulfate – Size Fraction?
- At what frequency
- At what spatial scale?

**Region 7**** ****Environmental Services Division**

**Region 7**** ****Environmental Services Division**

## Opportunities for collaboration

**Region 7**** ****Environmental Services Division**

**Region 7**** ****Environmental Services Division**

## 1999 Report

**1999 Report**

## Other Potential Collaborators

- NASA
- AERONET Aerosol Flux Network
- Multiple ground based aerosol measurement techniques – Global scale
- USDA
- Soil Tilth Laboratory
- Research priorities related to Agricultural emissions
- ISU Ag Research Station: Ames - AERONET Sun Photometer site
- NOAA
- AIRMon Deposition Program
- National Weather Service CRN Program
- Kansas State University
- Konza Prairie Biological Field Station
- NSF LTER/AERONET/NADP/CRN Site

**Region 7**** ****Environmental Services Division**

**Region 7**** ****Environmental Services Division**

## Regional Vision

- To establish a sustainable long-term air monitoring network in collaboration with the atmospheric and ecological research communities to support National and Regional scale data collection, modeling, and ecological assessment while serving the needs of our core air monitoring program responsibilities and customers

## Emissions, transport and deposition AFO Related Pollutants

**Region 7**** ****Environmental Services Division**

- An opportunity for inter-agency atmospheric research and collaboration
- Regional Perspective

**Michael F. Davis                  USEPA Region 7       Environmental Services Division 901 North 5****th**** Street                 Kansas City, KS  66101         913-551-7096                     davis.michael@epa.gov**