Air Monitoring Instruments and Methods
Ambient Air Monitoring Methodologies
| Pollutant/Parameter | Units | Automated Continuous (Hourly) |
Manual | Instrumentation and Methodology |
EPA Reference and/or Equivalency Designation |
|
|---|---|---|---|---|---|---|
| Every 6th Day Midnight-Midnight |
Every 3rd Day Midnight-Midnight |
|||||
| Sulfur Dioxide (SO2) | PPM | X | Thermo Electro (TECO) Model 43C Pulsed Fluorescence |
EQSA-0276-009 | ||
| Sulfur Dioxide (Low Level) |
PPB | X | TECO Model 43S/43C Pulsed Fluorescence |
|||
| Oxides of Nitrogen Nitric Oxide (NO) Nitrogen Dioxide (NO2) Total (NOx) |
PPM | X | TEI Model 42/42C Gas Phase Chemiluminescence |
RFNA-0977-025 | ||
| Carbon Monoxide (CO) | PPM | X | TECO Model 48C Gas Filter Correlation Non-Dispersive Infrared |
RFCA-0981-054 | ||
| Ozone (O3) | PPM | X | TECO Model 49C Ultraviolet Light Absorption |
EQOA-0880-047 | ||
| PM2.5 Speciation Ions, Metals, Carbon |
µg/m³ | X | X | Rupprecht & Patshnick 2300 Partisol | RFPS-0498-118 |
|
| Fine Particulate Matter (PM2.5) | µg/m³ | X | X | Rupprecht & Patashnick TEOM 1400ab Rupprecht & Patashnick 2025 Partisol |
RFPS-0498-118 |
|
| Inhalable Particulates (PM10) |
µg/m³ | X | X | Rupprecht & Patashnick TEOM 1400ab Wedding & Associates Critical Flow Gravimetric Quartz Filter |
EQPM-1090-079 RFPS-1087-062 |
|
| Inhalable Particulates (PM10) Sulfates (SO4) Nitrates (NO3) |
µg/m³ | X | Portion of PM10 Sample treated chemically and analyzed by ion chromatography |
|||
| Total Suspended Particulates (TSP) |
µg/m³ | X | General Metal Works Model GL2000 Gravimetric Glass Fiber Filter |
|||
| Total Suspended Particulates (TSP) Sulfates (SO4) Nitrates (NO3) |
µg/m³ | X | Portion of PM10 Sample treated chemically and analyzed by ion chromatography |
|||
| Lead | µg/m³ | X | General Metal Works Model GL2000 Gravimetric Glass Fiber Filter Atomic Absorption |
|||
| Pollutant/Parameter | Units | Automated Continuous (Hourly) |
Manual | Instrumentation and Methodology |
EPA Reference |
|
|---|---|---|---|---|---|---|
| Every 6th Day Midnight-Midnight |
Weekly | |||||
| Arsenic (As) | µg/m³ | X | General Metal Works Model GL2000 Gravimetric Glass Fiber Filter Wedding & Associates Inductively Coupled Plasma Emission |
|||
| Cadmium (Cd) | µg/m³ | X | ||||
| Mercury (Hg) | µg/m³ | X | ||||
| Nickel (Ni) | µg/m³ | X | ||||
| Vanadium (V) | µg/m³ | X | ||||
| Pollutant/Parameter | Units | Automated Continuous (Hourly) |
Manual | Instrumentation and Methodology |
EPA Reference |
|
|---|---|---|---|---|---|---|
| Every 6th Day Midnight-Midnight |
Weekly | |||||
| Methylene Chloride (DCMA) | PPB | X | SUMMA Polished or Glass-lined Canister (TO-14) Gas Chromatography Mass Spectrometry |
|||
| Chloroform (CLFM) | PPB | X | ||||
| 1,2 Dichloroethane (12DCA) | PPB | X | ||||
| 1,1,1-Trichloroethane (111TC) | PPB | X | ||||
| Carbon Tetrachloride (CARBT) | PPB | X | ||||
| Trichloroethylene (TCE) | PPB | X | ||||
| 1,1,2-Trichloroethane (112TCA) | PPB | X | ||||
| Toluene (TOLU) | PPB | X | ||||
| Tetrachloroethylene (PERC) | PPB | X | ||||
| Benzene (BENZ) | PPB | X | ||||
| Ethylbenzene (EBENZ) | PPB | X | ||||
| Meta & Paraxylene (MPXYL) | PPB | X | ||||
| OrthoXylene (OXYL) | PPB | X | ||||
| Chlorobenzene (CLBEN) | PPB | X | ||||
| 1,3 Dichlorobenzene (MDCBZ) | PPB | X | ||||
| 1,4 Dichlorobenzene (PDCBZ) | PPB | X | ||||
| 1,2 Dichlorobenzene (ODCBZ) | PPB | X | ||||
| Vinyl Chloride (VINYL) | PPB | X | ||||
| 1,2 Dichloropropane (12DCP) | PPB | X | ||||
| 1,2,4-Trimethylbenzene (124MB) | PPB | X | ||||
| 1,3,5-Trimethylbenzene (135MB) | PPB | X | ||||
| 1,1 Dichloroethene (11DCE) | PPB | X | ||||
| Hexachloro-1,3-Butadiene (HCBD) | PPB | X | ||||
| 1,1 Dichloroethane (11DCA) | PPB | X | ||||
| Chloromethane (CLMA) | PPB | X | ||||
| Chloroethane (CLEA) | PPB | X | ||||
| cis 1,2-Dichloroethene (c12CE) | PPB | X | ||||
| cis 1,3-Dichloropropene (c13CP) | PPB | X | ||||
| trans 1,3-Dichloropropene (t13CP) | PPB | X | ||||
| Dichlorodifluoromethane (FR12) | PPB | X | ||||
| Trichlorofluoromethane (FR11) | PPB | X | ||||
| Trichlorotrifluoroethane (FR113) | PPB | X | ||||
| Dichlorotetrafluoroethane (FR114) | PPB | X | ||||
| 1,2-Dibromoethane (12BEA) | PPB | X | ||||
| A-chlorotouluene (ACTOL) | PPB | X | ||||
| 1,1,2,2 Tetrachloroethane (1122C) | PPB | X | ||||
| Bromomethane (BRMA) | PPB | X | ||||
| Styrene (STYR) | PPB | X | ||||
| Bromodichloromethane (BDCMA) | PPB | X | ||||
| 1,3 Butadiene (13BD) | PPB | X | ||||
| Methyl Tert Butyl Ether (MTBE) | PPB | X | ||||
| 2 Chloroprene (2CP) | PPB | X | ||||
| Tribromomethane (BRFM) | PPB | X | ||||
| 1,2,4 Trichlorobenzene (124CB) | PPB | X | ||||
| Pollutant/ Parameter |
Units | Automated Continuous (Hourly) |
Manual | Instrumentation and Methodology |
EPA Reference and/or Equivalency Designation |
|
|---|---|---|---|---|---|---|
| Every 6th Day Midnight-Midnight |
Weekly | |||||
| Precipitation | Inches | X | Belfort Model 3200 Hi-Capacity Precipitation Gauge Sierra Misco Model 2500E Tipping Bucket, Rain Gauge |
|||
| Precipitation | Inches | X | Viking Environmental Instruments, Inc. Hyetometer Automatic Sensing Wet/Dry Collector |
|||
| Water Bath | X | Precision Scientific Microprocessor Controlled 280 Series Water Bath |
||||
| pH | pH units | X | Thermo Orion PerpHect Epoxy ATC - 927005 Rosscombination pH - 8102BN |
|||
| Conductivity | µs/cm | X | Thermo Orion Conductivity Cell - 013005D Dura Probe |
|||
| Anions Fluoride Chloride Bromide Nitrite Nitrate Sulfate Ortho-phosphate |
i ppm | X | Dionex Model 500DX AS Auto Sampler AS50 Thermal Compartment EG49 Eluent Generator CD 20 Conductivity Detector IP25 Isocratic Pump |
|||
| Cations Sodium Ammonium Potassium Calcium Magnesium |
||||||
| Pollutant/ Parameter |
Units | Automated Continuous (Hourly) |
Manual | Instrumentation and Methodology |
EPA Reference and/or Equivalency Designation |
|
|---|---|---|---|---|---|---|
| Every 6th Day Midnight-Midnight |
Weekly | |||||
| Wind Direction | Degrees (Azimuth) | X | Climatronics or Met One Sonic Sensors |
|||
| Wind Speed | MPH | |||||
| Wind Sigma (Horizontal) | Degrees (Azimuth) | |||||
| Precipitation | Inches | X |
Belfort Model 3200 Hi-Capacity MRI Model 302 |
|||
| Temperature | °F | X | Teledyne Geotech Model T-200; or Bristol Model 9Q6; or Climatronics Model P/N 100826 Thermistor Bridge or Platinum RTD |
|||
| Dew Point | °F | X | Teledyne Geotech Model DP200B Lithium Chloride Bobbin |
|||
| Relative Humidity | X | Teledyne Geotech Model RH200 Helical Hydroscopic LVDT |
||||
| Barometric Pressure | Inches of Mercury | X | Teledyne Geotech Model BP300 Capsular - LVDT |
|||
| Total Radiation | cal/cm²/hr (Langleys/hr) |
X | EPPLY Model 8-48 Total sun and sky pyronometer |
|||

