Nitrate/Chlorophyll:
Nitrate concentrations are approximately 16 uM. Seawater
fluorescence is being recorded continuously. Surface seawater
samples are being collected every 4 hours for discrete chlorophyll analysis.
Atmospheric Measurements:
DMS:
Concentrations are approx. 50 ppt.
SO2:
Concentrations are approx. 10ppt.
NH3:
Using oxalic acid coated filters.
CO:
Concentrations are approx. 60 ppb.
NMHC:
O3:
Concentrations are approx. 20 ppb.
Nitrogen oxides and PAN:
Only PAN system operational.
Aerosol chemistry:
2-stage and 7-stage impactors currently sampling for time
periods ranging from 24 to 72 hours for IC, total organic carbon, speciated
organics, and gravimetric analysis.