| Parameter |
Time Resolution |
Method |
Det. Limit |
| Ozone (O3) |
10 s |
UV Absorption |
25 ppb |
| Carbon Monoxide (CO) |
20 s |
NDIR |
20 - 25 ppb |
| Fast CO (FCO) |
5 s |
VUV Resonance Fluorescence |
5 ppb |
| Sulfur Dioxide (SO2) |
2 s |
UV Pulsed Fluorescence |
200 - 300 ppt |
| Nitric Oxide (NO) |
< 10 s |
NO/O3 Chemiluminescence |
20 ppt |
| Nitrogen Dioxide (NO2) |
< 10 s |
Photolysis NO/O3 Chem. |
50 ppt |
| Nitrogen Dioxide (optional) |
< 10 s |
Luminol Chemiluminescence |
0.015 ppbv |
| Total Nitrogen Oxides (NOy) |
< 10 s |
Mo Converter. NO/O3 Chem. |
300 - 400 ppt |
| PAN |
1 sample/7 min |
Cyrogenic GC |
15 ppt |
| CH2O (optional) |
Continuous (1min delay) |
Fluorescence |
100 ppt |
| PAN |
4 s |
Tandem Mass Spectrometry |
400 ppt |
| HNO2 |
4 s |
Tandem Mass Spectrometry |
400 ppt |
| HNO3 |
4 s |
Tandem Mass Spectrometry |
400 ppt |
| NH3 (optional) |
4 s |
Tandem Mass Spectrometry |
~2 ppb |
| Formic/Acid acids (optional) |
4 s |
Tandem Mass Spectrometry |
100 ppt |
| Canister VOCs |
|
Canister Sampling, GC/FID |
0.1 ppbv |
| bscat |
1 s |
Nephelometer |
0-103/Mm |
| Aerosol size distribution |
1 s |
PCASP |
(0.17 - 3 µm) |
| Aerosol size distribution |
1 s |
FSSP |
(2 - 47 µm) |
| Particle Number |
1 s |
CNC (two) |
(> 7 nm, > 3 nm) |
| UV Radiation |
1 s |
Eppley Pyranometer |
(295 - 385 nm) |
| Short-wave Irradiance |
1 s |
Eppley PSP |
(285 - 2800 nm) |
| Long-wave Irradiance |
1 s |
Eppley PIR |
(4 - 50 microns) |
| Water Vapor (H2O) |
1 s |
Lyman Alpha Absorption |
±0.1 g m-3(est.) |
| Air Temperature |
1 s |
Platinum Resistance |
±0.5 ºC |
| Dewpoint/Frostpoint |
1 s |
Chilled Mirror |
D.P. ±0.2 ºC, F.P. ±0.4 |
ºC
| Wind Components (u-,v-,w-) |
1 s |
Gust Probe |
< 0.5 m s-1 |
| Altitude |
1 s |
Barometric |
< 1 mb |
| Position |
1 s |
GPS |
< 3 m |
| Air Speed |
0.1 s |
Barometric |
< 20 cm s-1 |
