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Organochlorine pesticides in surface soils from obsolete pesticide dumping ground in Hyderabad City, Pakistan: contamination levels and their potential for air-soil exchange

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Organochlorine pesticides in surface soils from obsolete pesticide dumping ground in Hyderabad City, Pakistan : contamination levels and their potential for air-soil exchange. / Alamdar, Ambreen; Syed, Jabir Hussain; Malik, Riffat Naseem; Katsoyiannis, Athanasios; Liu, Junwen; Li, Jun; Zhang, Gan; Jones, Kevin C.

In: Science of the Total Environment, Vol. 470-471, 01.02.2014, p. 733-741.

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Alamdar, Ambreen ; Syed, Jabir Hussain ; Malik, Riffat Naseem ; Katsoyiannis, Athanasios ; Liu, Junwen ; Li, Jun ; Zhang, Gan ; Jones, Kevin C. / Organochlorine pesticides in surface soils from obsolete pesticide dumping ground in Hyderabad City, Pakistan : contamination levels and their potential for air-soil exchange. In: Science of the Total Environment. 2014 ; Vol. 470-471. pp. 733-741.

Bibtex

@article{0e904c3cd70b45bb8a1c69b0dfe64968,
title = "Organochlorine pesticides in surface soils from obsolete pesticide dumping ground in Hyderabad City, Pakistan: contamination levels and their potential for air-soil exchange",
abstract = "This study was conducted to examine organochlorine pesticides (OCPs) contamination levels in the surface soil and air samples together with air-soil exchange fluxes at an obsolete pesticide dumping ground and the associated areas from Hyderabad City, Pakistan. Among all the sampling sites, concentrations of OCPs in the soil and air samples were found highest in obsolete pesticide dumping ground, whereas dominant contaminants were dichlorodiphenyltrichloroethane (DDTs) (soil: 77-212,200 ng g(-1); air: 90,700 pg m(-3)) and hexachlorocyclohexane (HCHs) (soil: 43-4,090 ng g(-1); air: 97,400 pg m(-3)) followed by chlordane, heptachlor and hexachlorobenzene (HCB). OCPs diagnostic indicative ratios reflect historical use as well as fresh input in the study area. Moreover, the air and soil fugacity ratios (0.9-1.0) at the dumping ground reflecting a tendency towards net volatilization of OCPs, while at the other sampling sites, the fugacity ratios indicate in some cases deposition and in other cases volatilization. Elevated concentrations of DDTs and HCHs at pesticide dumping ground and its surroundings pose potential exposure risk to biological organisms, to the safety of agricultural products and to the human health. Our study thus emphasizes the need of spatio-temporal monitoring of OCPs at local and regional scale to assess and remediate the future adverse implications.",
keywords = "Obsolete pesticide burial ground, OCPs, Air–soil exchange, Hyderabad City, Pakistan",
author = "Ambreen Alamdar and Syed, {Jabir Hussain} and Malik, {Riffat Naseem} and Athanasios Katsoyiannis and Junwen Liu and Jun Li and Gan Zhang and Jones, {Kevin C.}",
year = "2014",
month = feb,
day = "1",
doi = "10.1016/j.scitotenv.2013.09.053",
language = "English",
volume = "470-471",
pages = "733--741",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier Science B.V.",

}

RIS

TY - JOUR

T1 - Organochlorine pesticides in surface soils from obsolete pesticide dumping ground in Hyderabad City, Pakistan

T2 - contamination levels and their potential for air-soil exchange

AU - Alamdar, Ambreen

AU - Syed, Jabir Hussain

AU - Malik, Riffat Naseem

AU - Katsoyiannis, Athanasios

AU - Liu, Junwen

AU - Li, Jun

AU - Zhang, Gan

AU - Jones, Kevin C.

PY - 2014/2/1

Y1 - 2014/2/1

N2 - This study was conducted to examine organochlorine pesticides (OCPs) contamination levels in the surface soil and air samples together with air-soil exchange fluxes at an obsolete pesticide dumping ground and the associated areas from Hyderabad City, Pakistan. Among all the sampling sites, concentrations of OCPs in the soil and air samples were found highest in obsolete pesticide dumping ground, whereas dominant contaminants were dichlorodiphenyltrichloroethane (DDTs) (soil: 77-212,200 ng g(-1); air: 90,700 pg m(-3)) and hexachlorocyclohexane (HCHs) (soil: 43-4,090 ng g(-1); air: 97,400 pg m(-3)) followed by chlordane, heptachlor and hexachlorobenzene (HCB). OCPs diagnostic indicative ratios reflect historical use as well as fresh input in the study area. Moreover, the air and soil fugacity ratios (0.9-1.0) at the dumping ground reflecting a tendency towards net volatilization of OCPs, while at the other sampling sites, the fugacity ratios indicate in some cases deposition and in other cases volatilization. Elevated concentrations of DDTs and HCHs at pesticide dumping ground and its surroundings pose potential exposure risk to biological organisms, to the safety of agricultural products and to the human health. Our study thus emphasizes the need of spatio-temporal monitoring of OCPs at local and regional scale to assess and remediate the future adverse implications.

AB - This study was conducted to examine organochlorine pesticides (OCPs) contamination levels in the surface soil and air samples together with air-soil exchange fluxes at an obsolete pesticide dumping ground and the associated areas from Hyderabad City, Pakistan. Among all the sampling sites, concentrations of OCPs in the soil and air samples were found highest in obsolete pesticide dumping ground, whereas dominant contaminants were dichlorodiphenyltrichloroethane (DDTs) (soil: 77-212,200 ng g(-1); air: 90,700 pg m(-3)) and hexachlorocyclohexane (HCHs) (soil: 43-4,090 ng g(-1); air: 97,400 pg m(-3)) followed by chlordane, heptachlor and hexachlorobenzene (HCB). OCPs diagnostic indicative ratios reflect historical use as well as fresh input in the study area. Moreover, the air and soil fugacity ratios (0.9-1.0) at the dumping ground reflecting a tendency towards net volatilization of OCPs, while at the other sampling sites, the fugacity ratios indicate in some cases deposition and in other cases volatilization. Elevated concentrations of DDTs and HCHs at pesticide dumping ground and its surroundings pose potential exposure risk to biological organisms, to the safety of agricultural products and to the human health. Our study thus emphasizes the need of spatio-temporal monitoring of OCPs at local and regional scale to assess and remediate the future adverse implications.

KW - Obsolete pesticide burial ground

KW - OCPs

KW - Air–soil exchange

KW - Hyderabad City

KW - Pakistan

U2 - 10.1016/j.scitotenv.2013.09.053

DO - 10.1016/j.scitotenv.2013.09.053

M3 - Journal article

C2 - 24184550

VL - 470-471

SP - 733

EP - 741

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -