Conifer needles as passive biomonitors of the spatial and temporal distribution of DDT from a point source

Chemosphere
Antonio Di GuardoDavide Calamari

Abstract

Needles of two conifer species, Picea abies and Pinus nigra, were used as passive samplers for monitoring air contamination by sampling at increasing distances from a suspected point source of DDT. Needle concentrations declined with increasing distance downwind of the point source allowing to identify spatial and temporal trends of accumulation. This suggested that conifer needles are effective biomonitors of contamination levels in areas characterized by the presence of semi-volatile substances. Differences in uptake were apparent between the species. Needle morphology and structure were studied with scanning electron microscope (SEM) as were dimensional parameters (surface area, volume). The results suggest that the concentrations depend on a mechanism involving the inner structure of the needles, specifically the number and accessibility of resin channels rather than their surface area. Pine needles have more channels with greater accessibility than spruce. The results suggest that spruce is more suitable for short term measurement while pine for determining long term cumulative exposure.

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Citations

Jun 8, 2007·Journal of Environmental Monitoring : JEM·Luca NizzettoAntonio Di Guardo
Feb 12, 2013·Environmental Technology·Rita AraújoArminda Alves
Sep 24, 2010·Arhiv za higijenu rada i toksikologiju·Darija Kozul, Snjezana Herceg Romanić
Jun 15, 2007·Arhiv za higijenu rada i toksikologiju·Snjezana Herceg Romanic, Blanka Krauthacker
Nov 30, 2011·Environmental Health and Toxicology·Man Young Chun
Jul 1, 2008·Bulletin of Environmental Contamination and Toxicology·Darija Kozul, Snjezana Herceg Romanić
Mar 17, 2009·Chemosphere·Anna OrlikowskaJerzy Falandysz
Jul 5, 2005·Ecotoxicology and Environmental Safety·Luca NizzettoAntonio Di Guardo
Nov 3, 2004·Environmental Pollution·Maria Teresa PiccardoFederico Valerio
Jun 23, 2009·Environmental Pollution·Jana KlánováIvan Holoubek
Sep 4, 2015·Environmental Science and Pollution Research International·Jun MeiPing'an Peng
Jan 16, 2021·Environmental Science and Pollution Research International·Firas BaroudiMaurice Millet
Aug 28, 2009·Environmental Science & Technology·Claudia MoeckelKevin C Jones
Jan 27, 2004·Environmental Science & Technology·Foday M JawardKevin C Jones
Jul 14, 2007·Environmental Science & Technology·Annick D St-AmandJules M Blais

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