Air Monitoring
Artiola, Chp 10
http://www.epa.gov/ttnamti1/redbook1.pdf
Quality Assurance Handbook for Air Pollution Measurement Systems
www.restek.com
Under products, they have photos of sampling equipment. Under
info and suuprt look at the document "A Guide to Passive
Air Sampling"
http://nadp.sws.uiuc.edu/
NADP program
http://www.epa.gov/ttn/amtic/
The Ambient Monitoring Technology Information Center (AMTIC) is
operated by EPA's Ambient Air Monitoring Group (AAMG). AMTIC contains
information and files on ambient air quality monitoring programs,
details on monitoring methods, relevant documents and articles,
information on air quality trends and nonattainment areas, and
federal regulations related to ambient air quality monitoring.
Under monitoring programs they have a description of the new National
Air Monitoring Strategy, also a description of the AQI
http://www.epa.gov/ttn/emc/monitor.html
Discusses types of monitoring. The EMC in general has a lot of
technical information on acceptable monitoring and analysis methods.
The Clean Air Act established two types of National Ambient
Air Quality Standards.
"Primary" standards are designed to establish limits
to protect public health, including the health of "sensitive"
populations such as asthmatics, children, and the elderly.
"Secondary" standards set limits to protect public welfare,
including protection against decreased visibility and damage to
animals, crops, vegetation, and buildings.
What are the criteria air pollutants and what are their health
and environmental effects.
What is the AQI scale? Ho does it work?
What is non-attainment all about and what do states have to do
if there are areas in non-attainment? What classes of non-attainment
are ther?
What is the focus of the new National Ambient Air Monitoring Strategy?
Why are we changing from NAMS and SLAMS. What is the new NCORE
monitoring network?
What are some of the types of monitoring that EPA has in place or has suggested? What are these about?
Why do air programs rely so heavily on models? How do models work?
General Methods
| Compound | Range | LDL | Technique employed |
| Oxides of Nitrogen | 0-20 ppm | 0.05 ppb | Chemiluminescence or DOAS Open Path |
| NOy | 0-2 ppm | 0.05 ppb | Chemiluminescence |
| Ammonia | 0-50 ppm | 0.5 ppb | Chemiluminescence |
| Sulphur Dioxide | 0-20 ppm | 0.2 ppb | Fluorescence or DOAS Open Path |
| H2S, TRS, TS | 0-20 ppm | 0.5 ppb | Fluoresence |
| Ozone | 0-20 ppm | 0.5 ppb | UV Photometrics or DOAS Open Path |
| Carbon Monoxide | 0-200 ppm | 25 ppb | Gas filter correlation or DOAS Open Path |
| Carbon Dioxide | 0-100% | 2 ppm | Gas filter correlation or DOAS Open Path |
| Benzene, Toluene, Xylene | 0-5 ppm | 0.5 ppb | Gas Chromatography or DOAS Open Path |
| Non Methane Hydrocarbons | 0-1000 ppm | 0.01 ppm | FID or DOAS Open Path |
| Methane | 0-1000 ppm | 0.01 ppm | FID or DOAS Open Path |
| Particulates (PM10, TSP, PM2.5) | 0-5 g/m3 | 0.1 ug/m3 | Tapered Element Oscillating Microbalance |
| Carbon Particulates | 0-5 g/m3 | 0.25 ug/m3 | Thermal CO2 Method |
| Local Visual Distance | 0-400 km | +/- 10% | Nephelometer |
| Wind Speed | 0-70 m/s | 0.22 m/s | Anemometer |
| Wind Direction | 0-540 deg; | +/- 3deg | Airfoil Vane |
| Ambient Temperature | -50 to 100 deg C | +/- 0.1deg C | Solid State Thermistor |
| Relative Humidity | 0-100% | +/- 1% | Thin film capacitor |
| Barometric Pressure | 800-1200 mb | +/- 1.3 mb | Solid state transducer |
| Precipitation | NA | 0.1 mm | Net Radiometer |
| Solar Radiation | 250-2800 nm | 9mv/kwm2 | Pyranometer |
| Net Radiation | 250-60000 nm | 8mv/kwm2 | Net Radiometer |
What is ambient sampling, passive sampling, active sampling? How would you collect a time-integrated sample?
What is the NADP program?
How does a wet/dry collector work? What are some of the rules
for placement of such a monitor?
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