U.S. Geological Survey Precipitation Chemistry Quality Assurance Project Data 2019 – 2020
February 3, 2022
The USGS Precipitation Chemistry Quality Assurance Project (PCQA) operates QA programs to challenge and test the National Atmospheric Deposition Program (NADP) data-collection processes for both the National Trends Network (NTN) and Mercury Deposition Network (MDN). PCQA data are available in separate tables for each quality-assurance program: (1) NTN Interlaboratory-comparison, (2) MDN Interlaboratory-comparison program, (3) NTN Field-Audit program, and (4) MDN System-Blank program. Measured parameters include precipitation depth, pH, specific conductance, and ion concentrations for calcium, magnesium, sodium, potassium, ammonium, chloride, bromide, nitrate, sulfate, phosphate, and total mercury.
Citation Information
| Publication Year | 2022 |
|---|---|
| Title | U.S. Geological Survey Precipitation Chemistry Quality Assurance Project Data 2019 – 2020 |
| DOI | 10.5066/P9B119QP |
| Authors | Gregory A Wetherbee |
| Product Type | Data Release |
| Record Source | USGS Asset Identifier Service (AIS) |
| USGS Organization | Water Resources Mission Area - Headquarters |
| Rights | This work is marked with CC0 1.0 Universal |
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