Wet and dry removal of tropospheric formaldehyde at a coastal site
Open Access
- 1 August 1980
- journal article
- Published by Stockholm University Press in Tellus
- Vol. 32 (4), 376-383
- https://doi.org/10.1111/j.2153-3490.1980.tb00964.x
Abstract
Formaldehyde in precipitation and in surface seawater has been measured at Woods Hole, Massachusetts (U.S.A.) a mid-latitude coastal site. From these measurements and a calculation of the diffusion-controlled air-to-sea transfer rate of the compound we estimate the wet and dry flux of H2CO from the troposphere to nearby coastal waters to be 6.3 ?g cm-2 yr-1 for precipitation and 5.7 ?g cm-2 yr-1 for gaseous diffusion. A comparison of these values with a simple photochemical model shows that these transfers may represent a significant removal mechanism for tropospheric formaldehyde. The total flux of H2CO is equivalent to an input of 4.8 ?g cm-2 yr-1 organic carbon, ?1% of estimated total organic carbon air-to-sea transfer. The absence of a detectable amount of formaldehyde in surface seawater suggests that its fate might be biological uptake. This view is supported by the finding that seawater enriched with formaldehyde shows a gradual loss of the compound, whereas the level remains unchanged in sterile seawater under light and dark conditions. DOI: 10.1111/j.2153-3490.1980.tb00964.xKeywords
This publication has 22 references indexed in Scilit:
- Formaldehyd in troposphärischer ReinluftBerichte der Bunsengesellschaft für physikalische Chemie, 1978
- Inputs of organic matter to the oceanMarine Chemistry, 1977
- Average concentrations of OH in the troposphere, and the budgets of CH 4, CO, H 2 and CH 3CCl 3Geophysical Research Letters, 1977
- Urban formaldehyde: Observed correlation with source emissions and photochemistryAtmospheric Environment (1967), 1977
- Photolysis of Formaldehyde as a Hydrogen Atom Source in the Lower AtmosphereScience, 1972
- Untersuchungen zur Hydratationskinetik von Formaldehyd in wäßriger LösungZeitschrift für Physikalische Chemie, 1969
- Effects of hydration on carbon dioxide exchange across an air-water interfaceJournal of Geophysical Research, 1969
- Aldehydes in Lake and Sea WatersBulletin of the Chemical Society of Japan, 1966
- The fluorimetric determination of formaldehydeAnalytica Chimica Acta, 1963
- The colorimetric estimation of formaldehyde by means of the Hantzsch reactionBiochemical Journal, 1953