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- 7 Nov 2021 - ) are the BRT metamodel response variables: VFM_fcN, nitrate (NO3) source concentration factor (which determines the local NO3 input concentrations); VFM_travel_time_yrs, unsaturated zone travel time; NO3_WT_mgL_...catalog.data.gov. Department of the Interior. United States of America. English.
xml10 Nov 2020 - An ion exchange resin bag technique (Binkley 1984, Lajtha 1988) was used to determine N availability in the rhizosphere of fluffgrass. Ion exchange resin bags were used to determine NO3. Twenty 6 x 6 ... and analyzed for NO3.catalog.data.gov. Department of Agriculture. United States of America. English. csv, html10 Nov 2020 - Dry atmospheric fallout (dryfall) is collected monthly using an Aerochem Metrics wetfall/dryfall collector located at the LTER weather station. Each sample is analyzed for NO3, NH4, Cl, SO4, Ca, Mg, Na, K, Total N, & Total P.catalog.data.gov. Department of Agriculture. United States of America. English. csv, html30 Jun 2021 - Chemical composition of freshwater samples from sites in Northern England. Measurements of pH, dissolved major ions (Na, Mg, K, Ca, Cl, NO3, SO4), dissolved organic carbon (DOC), dissolved Al, Fe(II) and total Fe, and measurements of Al, Fe(II) and total Fe on samples following dialysis.ckan.publishing.service.gov.uk. Environmental Information Data Centre. United Kingdom. English. zip12 Nov 2020 - , SO2 ug/m3, SO4= ug/m3, HNO3 ug/m3, NO3- ug/m3, NH4+ ug/m3, Total NO3- ug/m3, Ca++ ug/m3, K+ ug/m3catalog.data.gov. U.S. Environmental Protection Agency. United States of America. English.10 Feb 2021 - and analysis for NO3- isotopes (NO3-: 15N-NO3- and 18O-NO3-) were added to the monitoring programcatalog.data.gov. U.S. Environmental Protection Agency. United States of America. English. excel17 Jul 2017 - of tropospheric NO3 in different meteorological conditions and seasons, and in a range of gas phase ... of night time chemical processes, and in particular NO3, for UK regional and Western European air qualityckan.publishing.service.gov.uk. Centre for Environmental Data Analysis. United Kingdom. English.19 Jun 2018 - of tropospheric NO3 in different meteorological conditions and seasons, and in a range of gas phase ... of night time chemical processes, and in particular NO3, for UK regional and Western European air qualityckan.publishing.service.gov.uk. Centre for Environmental Data Analysis. United Kingdom. English.11 Jun 2021 - concentration of chloride (Chl), ammonium (NH4), nitrate (NO3), sulphate (SO4), and organic matter (Orgdata.gov.ie. NUI Galway. United Kingdom. English. csv | Rows: 80 | 
acsm_loca…, acsm_utc_…, NH4, NO3, Org, SO411 Jun 2021 - Daily ACSM Measurements for UCD for year 2020 Instrument Type,Quadrupole Aersosol Chemical Speciaction Monitor (QACSM) PM range,PM1 Instrument Serial no.,140133 Parameters Measured ,"Mass concentration of chloride (Chl), ammonium (NH4), nitrate (NO3), sulphate (SO4), and organic matter (Org)" Unitsdata.gov.ie. NUI Galway. United Kingdom. English. csv | Rows: 353 | acsm_loca…, acsm_utc_…, NH4, NO3, Org, SO4