By the first of the year, all but one site should be using the e-FOF on a full time basis. Network - pH data are still being sent to NOAA for the National Geographic s Kid s Network. Jane Rothert reviewed new text that describes pH measurements of acid rain and general information about acid deposition and collection. The AIRMoN Site Operator s Manual was published as a NOAA Technical Memorandum in April. A new type of Gelman filter was tested to see if the positive bias for sodium seen with the Millipore filters is better or worse.
Preliminary results are very positive.
We would like to standardize the procedure and incorporate it into the regular bucket washing protocols. The new method will formalize how new buckets are introduced into the system. The CAL is currently a Beta lab for testing Orion s new pH meter in a computer. This is a regular computer with a special attachment and software that turns the computer into a pH meter. Ammonium stability study Sue Bachman, Van Bowersox, and Pam Scales have begun exploring various ways to study the degradation of ammonium and other biologically sensitive constituents in acid precipitation.