External Quality-Assurance Results for the National Atmospheric Deposition Program/ National Trends Network and Mercury Deposition Network, 2004
The U.S. Geological Survey (USGS) used five programs to provide external quality-assurance monitoring for the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) and two programs to provide external quality-assurance monitoring for the NADP/Mercury Deposition Network (NADP/MDN) during 2004. An intersite-comparison program was used to estimate accuracy and precision of field-measured pH and specific-conductance. The variability and bias of NADP/NTN data attributed to field exposure, sample handling and shipping, and laboratory chemical analysis were estimated using the sample-handling evaluation (SHE), field-audit, and interlaboratory-comparison programs. Overall variability of NADP/NTN data was estimated using a collocated-sampler program. Variability and bias of NADP/MDN data attributed to field exposure, sample handling and shipping, and laboratory chemical analysis were estimated using a system-blank program and an interlaboratory-comparison program.
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External Quality-Assurance Results for the National Atmospheric Deposition Program/ National Trends Network and Mercury Deposition Network, 2004
The U.S. Geological Survey (USGS) used five programs to provide external quality-assurance monitoring for the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) and two programs to provide external quality-assurance monitoring for the NADP/Mercury Deposition Network (NADP/MDN) during 2004. An intersite-comparison program was used to estimate accuracy and precision of field-measured pH and specific-conductance. The variability and bias of NADP/NTN data attributed to field exposure, sample handling and shipping, and laboratory chemical analysis were estimated using the sample-handling evaluation (SHE), field-audit, and interlaboratory-comparison programs. Overall variability of NADP/NTN data was estimated using a collocated-sampler program. Variability and bias of NADP/MDN data attributed to field exposure, sample handling and shipping, and laboratory chemical analysis were estimated using a system-blank program and an interlaboratory-comparison program.
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External Quality-Assurance Results for the National Atmospheric Deposition Program/ National Trends Network and Mercury Deposition Network, 2004
External Quality-Assurance Results for the National Atmospheric Deposition Program/ National Trends Network and Mercury Deposition Network, 2004
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Product Details
| BN ID: | 2940014367622 |
|---|---|
| Publisher: | The Delano Max Wealth Institute, LLC. |
| Publication date: | 05/18/2012 |
| Sold by: | Barnes & Noble |
| Format: | eBook |
| File size: | 8 MB |
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