Item talk:Q272610

{

 "USGS Publications Warehouse": {
   "@context": "https://schema.org",
   "@type": "CreativeWork",
   "additionalType": "Other Government Series",
   "name": "U.S. Geological Survey external quality-assurance project report to the National Atmospheric Deposition Program / National Trends Network and Mercury Deposition Network, 2007-08",
   "identifier": [
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse IndexID",
       "value": "70047800",
       "url": "https://pubs.usgs.gov/publication/70047800"
     },
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse Internal ID",
       "value": 70047800
     }
   ],
   "inLanguage": "en",
   "datePublished": "2010",
   "dateModified": "2013-11-19",
   "abstract": "The U.S. Geological Survey (USGS) used six distinct \nprograms to provide external quality-assurance monitoring for the National Atmospheric Deposition Program / \nNational Trends Network (NTN) and Mercury Deposition \nNetwork (MDN) during 2007-08. The field-audit program \nassessed the effects of onsite exposure, sample handling, \nand shipping on the chemistry of NTN samples, and a \nsystem-blank program assessed the same effects for MDN. \nTwo interlaboratory-comparison programs assessed the \nbias and variability of the chemical analysis data from \nthe Central Analytical Laboratory (CAL), Mercury (Hg) \nAnalytical Laboratory (HAL), and 12 other participating \nlaboratories. A blind-audit program was also implemented \nfor the MDN to evaluate analytical bias in HAL total Hg \nconcentration data. A co-located-sampler program was \nused to identify and quantify potential shifts in NADP \ndata resulting from replacement of original network \ninstrumentation with new electronic recording rain gages \n(E-gages) and prototype precipitation collectors.\n\nThe results indicate that NADP data continue to be of \nsufficient quality for the analysis of spatial distributions \nand time trends of chemical constituents in wet deposition \nacross the U.S. NADP data-quality objectives continued to \nbe achieved during 2007-08. Results also indicate that retrofit \nof the NADP networks with the new E-gages is not likely to \ncreate step-function type shifts in NADP precipitation-depth \nrecords, except for sites where annual precipitation depth is \ndominated by snow because the E-gages tend to catch more \nsnow than the original NADP rain gages. Evaluation of \nprototype precipitation collectors revealed no difference in \nsample volumes and analyte concentrations between the original NADP collectors and modified, deep-bucket collectors, \nbut the Yankee Environmental Systems, Inc. (YES) collector obtained samples of significantly higher volumes and \nanalyte concentrations than the standard NADP collector.",
   "description": "x, 82 p.",
   "publisher": {
     "@type": "Organization",
     "name": "Illinois State Water Survey"
   },
   "author": [
     {
       "@type": "Person",
       "name": "Wetherbee, Gregory A. wetherbe@usgs.gov",
       "givenName": "Gregory A.",
       "familyName": "Wetherbee",
       "email": "wetherbe@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0002-6720-2294",
         "url": "https://orcid.org/0000-0002-6720-2294"
       },
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Branch of Quality Systems",
           "url": "https://www.usgs.gov/labs/national-water-quality-laboratory"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Latysh, Natalie E.",
       "givenName": "Natalie E.",
       "familyName": "Latysh"
     },
     {
       "@type": "Person",
       "name": "Chesney, Tanya A.",
       "givenName": "Tanya A.",
       "familyName": "Chesney"
     }
   ],
   "funder": [
     {
       "@type": "Organization",
       "name": "Branch of Quality Systems",
       "url": "https://www.usgs.gov/labs/national-water-quality-laboratory"
     }
   ]
 }

}