||Development and Evaluation of an Acid Precipitation Monitor for Fractional Event Sampling with Capability for Real-Time pH and Conductivity Measurement.
Kronmiller, K. G. ;
Ellenson, W. D. ;
Baumgardner, R. E. ;
Stevens, R. K. ;
Paur., R. J. ;
||Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;Northrop Services, Inc., Research Triangle Park, NC.
Quality control ;
Performance evaluation ;
Field tests ;
Design criteria ;
Acid rain ;
Air pollution monitors ;
Temporal distribution ;
Air pollution effects(Materials)
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||An acid precipitation monitor has been developed that collects fractions of rain events, measures the pH and conductivity in real-time, and stores the remaining samples under refrigerated conditions. A Z-80 microprocessor controls all operations of the monitor including sample collection, sample analysis, quality control analysis, and data recording. Quality control analysis consists of analysis upon demand of a low-ionic-strength solution. The monitor was evaluated in the field and about 40 rain events were monitored. Excellent stability of the pH electrode was found under field conditions.
||Pub. in Atmospheric Environment, v24 n3 p525-536 1990. Prepared in cooperation with Northrop Services, Inc., Research Triangle Park, NC.
|NTIS Title Notes
||Reprint: Development and Evaluation of an Acid Precipitation Monitor for Fractional Event Sampling with Capability for Real-Time pH and Conductivity Measurement.
||PC A03/MF A01