Abstract
Chemical analyses were performed on 387 sequential precipitation samples, both rain and snow, collected at Brookhaven National Laboratory, Long Island, New York, on 96 different days during the period from October 1983 to June 1985. The collection time for each individual sample was typically 30 min. The chemical species determined and the volume-weighted average and maximum concentrations (in parentheses) in units of μM were: H202:7(120), H2CO:6(60), H+:5l(500), NO3-: 30(350), S04 2-:25(270), NH4 +: 18(250), Ca2+:3(48), Na+:32(400), and C1-:37(380). A strong seasonal dependence was observed for H202 concentration, the maximum concentration in summer (120 μM) being 6 times greater than in winter. In addition, H202 concentration also exhibited a strong diurnal variation, with a maximum peaking in the afternoon and a minimum after midnight. These observations suggest that the production of H202 may be governed by photochemical activity. Nitrate concentration also displayed a strong diurnal variation, having a maximum around noon, but did not show a seasonal dependence. Relationships between various species and their possible sources are briefly discussed.
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© 1986 Springer Science+Business Media Dordrecht
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Lee, YN., Shen, J., Klotz, P.J. (1986). Chemical Composition of Precipitation at Long Island, NY. In: Martin, H.C. (eds) Acidic Precipitation. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3385-9_13
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DOI: https://doi.org/10.1007/978-94-009-3385-9_13
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