Field intercomparison of precipitation samplers for assessing wet deposition of organic contaminants. Final report

Technical Report · Thu Mar 01 04:00:00 EST 1990

OSTI ID:6328200

Eisenreich, S J; Franz, T P; Swanson, M B

A field intercomparison of four wet-only precipitation samplers were performed to assess their ability to efficiently collect rain and selected organic contaminants. Samplers are evaluated and compared on the basis of their ability to efficiently collect rainfall, exhibit mechanical reliability, demonstrate adequate operational characteristics and provide precise measures of wet-only inputs. The most significant difference between the four samplers was their mechanical reliability in the field. The samplers performed equally well in assessing organic concentrations in rain. The sampler intercomparison was conducted in part to select the preferred characteristics of a rain sampler that must be deployed in the field unattended for up to two weeks. The MIC sampler, properly maintained, is suitable for such a purpose. Of the two modes of compound isolation tested, the resin adsorbent (XAD-2) exhibited modestly higher concentrations that the solvent MIC but had the disadvantage of ease of sample handling and lower blanks. Both could be operated with proper maintance to provide precise data. The stainless steel and Teflon coated funnel surfaces provided comparable data.

• Research Organization: Minnesota Univ., Minneapolis, MN (USA). Dept. of Civil and Mineral Engineering
• OSTI ID: 6328200
• Report Number(s): PB-91-125880/XAB; CNN: R-005840
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION
ATMOSPHERIC PRECIPITATIONS
COMPARATIVE EVALUATIONS
DOCUMENT TYPES
EFFICIENCY
EQUIPMENT
FIELD TESTS
ORGANIC COMPOUNDS
POLLUTION
PRECIPITATION SCAVENGING
PROGRESS REPORT
RAIN
RELIABILITY
SAMPLERS
SEPARATION PROCESSES
TESTING