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Series / Report no.
Open Access
Type
Report
Language
nl
Date
1996-10-31
Research Projects
Organizational Units
Journal Issue
Title
Landelijk Meetnet Regenwatersamenstelling.
Meetresultaten 1994
Translated Title
Dutch National Precipitation Chemistry Network.
Monitoring results for 1994
Published in
Abstract
Metingen van de chemische samenstelling van de neerslag
in Nederland zijn uitgevoerd aan de hand van 4-wekelijkse monsters verkregen
uit het Landelijk Meetnet Regenwatersamenstelling (LMRe). Op 15 stations
werden monsters verzameld voor analyse op hoofdcomponenten en op
anorganische microcomponenten (zware metalen). Daarnaast werden op twee
stations aparte monsters verzameld voor analyse op het bestrijdingsmiddel
lindaan (gamma-HCH) en kwik (vanaf juli) en op een station werden monsters
verzameld voor analyse op een aanvullende set bestrijdingsmiddelen. Deze
set bestaat uit 2,4-D, 2,4,5-T, atrazin, bentazon, cyanazin,
desethylatrazin, desisopropylatrazin, dichloorprop, MCPA, mecoprop,
metolachloor en simazin. In de monsters van de hoofdcomponenten werden de
concentraties van hydronium (vrij zuur), natrium, kalium, calcium,
magnesium, fluoride, chloride, nitraat, sulfaat, bicarbonaat en fosfaat
bepaald. Voorts werden van deze monsters de geleidbaarheid en de pH
bepaald. De monsters voor zware metalen werden geanalyseerd op cadmium,
koper, lood, mangaan, ijzer en zink. Bovendien werden de monsters van twee
stations geanalyseerd op arseen, chroom, nikkel en vanadium. De
gepresenteerde resultaten worden ingeleid door informatie over het LMRe, een
toelichting en een weergave van de berekeningswijze.
Measurements to determine the chemical composition of precipitation in the Netherlands were carried out in 1994. Measurements were taken from 4-weekly samples obtained from the National Precipitation Chemistry Monitoring Network (LMRe). Samples from 15 stations were analysed for main components and inorganic microcomponents (heavy metals). Additionally, different samples were taken at two stations for analysis of the component mercury and the pesticide lindane (gamma-HCH) and at one station for analysis of a supplementary set of pesticides. This set contains 2,4-D, 2,4,5-T, atrazine, bentazone, cyanazine, desethylatrazine, desisopropylatrazine, dichlorprop, MCPA, mecoprop, metolachlor and simazine. Analysis of the main component samples determined the concentrations of hydrogen ions (free acid), sodium, potassium, calcium, magnesium, fluoride, chloride, nitrate, sulphate, bicarbonate and phosphate, along with conductivity and pH value. The samples for heavy metals were analysed for cadmium, copper, iron, manganese, lead and zinc. Arsenic, chrome, nickel and vanadium were also determined in samples from two stations. Information on the LMRe and the calculation procedures precede the results presented.
Measurements to determine the chemical composition of precipitation in the Netherlands were carried out in 1994. Measurements were taken from 4-weekly samples obtained from the National Precipitation Chemistry Monitoring Network (LMRe). Samples from 15 stations were analysed for main components and inorganic microcomponents (heavy metals). Additionally, different samples were taken at two stations for analysis of the component mercury and the pesticide lindane (gamma-HCH) and at one station for analysis of a supplementary set of pesticides. This set contains 2,4-D, 2,4,5-T, atrazine, bentazone, cyanazine, desethylatrazine, desisopropylatrazine, dichlorprop, MCPA, mecoprop, metolachlor and simazine. Analysis of the main component samples determined the concentrations of hydrogen ions (free acid), sodium, potassium, calcium, magnesium, fluoride, chloride, nitrate, sulphate, bicarbonate and phosphate, along with conductivity and pH value. The samples for heavy metals were analysed for cadmium, copper, iron, manganese, lead and zinc. Arsenic, chrome, nickel and vanadium were also determined in samples from two stations. Information on the LMRe and the calculation procedures precede the results presented.
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