Atmospheric deposition of organochlorine pesticides by precipitation in a coastal area

Abstract

Wet deposition fluxes of organochlorine pesticides (OCPs) were determined for rain samples collected in a coastal area of Turkey. Seventeen precipitation samples were collected over a 1-year period from 2008 to 2009. Rainwater was accumulated at the beginning of rain events using real time monitoring. Atmospheric concentrations were also measured in parallel with deposition samples. Both atmospheric concentrations and deposition fluxes were determined as particle and gas phases. The particle phase and dissolved phase deposition fluxes were 794.26 ± 756.70 ngm day and 800.77 ± 672.63 ngm day, respectively. The washout ratios for OCP compounds were calculated separately for the particle and dissolved phases using the atmospheric concentrations and rain concentrations. The minimum washout ratio for the particle phase was 2339.47 for Endrin aldehyde, whereas the maximum washout ratio was 497593.34 for Methoxychlor. The maximum washout ratio for the dissolved phase was 247523.89 for Endosulfan beta, whereas the minimum washout ratio was 10169.69 for p,p'-DDT. The dry deposition velocities ranged from 0.01 to 1.67 cms. The partitioning of wet deposition between the particle and dissolved phases was 50 % in terms of total OCP deposition.

Rainwater Harvesting for Drinking Water Production: A Sustainable and Cost-Effective Solution in The Netherlands?

“…In comparing international treatment processes for harvested rainwater, it should be kept in mind that differences in local standards would affect the proposed treatment processes. In most investigations, inorganic compounds were measured, but Cindoruk and Ozturk [51] showed that organochlorine pesticides can be found in rainwater in several places in the world, and the presence of polycyclic hydrocarbons was demonstrated by Göbel et al [52] and Angrill, Petit-Boix, Morales-Pinzón, Josa, Rieradevall and Gabarrell [18]. An overview of the concentrations generally found in rainwater is shown in the Supplementary Information Tables S3-S8. Problems with water quality mainly arise from contamination during the collection of water, when the rainwater is in contact with hard surfaces.…”

Measured and modelled environmental exposure of residents to pesticides

“…these compounds are redistributed (tiryaki & temur 2010) into different environmental compartments (i.e. air, water, and soil) via wind dispersion, as well as via wet (Cindoruk & ozturk 2016) and dry deposition (Sauret et al 2009). Some pesticides and degradation products may remain in the environment long after application.…”