Quality Assurance Support for the National Atmospheric Deposition Program and National Trends Network Monitoring Activities: 1987-1990. Second Interim Report

摘要

The report summarizes the quality assurance activities of the NADP/NTN Quality Assurance Manager from mid-1988 through mid-1989. The report presents some accomplishments and makes recommendations for the network. The report outlines the progress being made by the NADP/NTN monitoring program in completing documentation of standard operating procedures, responding to field operation and siting deficiencies and discusses data quality issues relating to the handling of TRACE samples and the quality coding of daily rain amounts. The report also contains an evaluation of a second laboratory's participation in the network and reports on a preliminary evaluation of Nipher-shielded Belfort rain gauge performance in the network. Recommendations emphasize the continued support of the quality assurance manager's role in coordinating quality assurance activities and the need for more support for the gathering and interpretation of quality assurance data.