Seasonal variations of organochlorine insecticide residues in air from Porto Novo, South India

Alluri, Ramesh; Tanabe, Shinsuke; Tatsukawa, Ryo; Subramanian, Annamalai; Palanichamy, S.; Mohan, D.; Venugopalan, V. K.

doi:10.1016/0269-7491(89)90188-7

Cited by 84 publications

(32 citation statements)

References 15 publications

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“…Technical grade DDT is actually a mixture of two isomers of DDT, including the p,p -DDT isomer (80%) with the o,p -DDT (20%) (Ramesh et al,1989). While DDT is highly resistant to degradation, some microbes can degrade DDT into a variety of metabolites.…”

Section: Resultsmentioning

confidence: 99%

Determination and Assessment of HCHs and DDTs Residues in Sediments from Lake Dongting, China

Qian

Zheng

Zhang

et al. 2006

Environ Monit Assess

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Abstract. The contamination of organochlorine pesticides hexachlorocyclohexane (HCH) and Dichlorodiphenyltrichloroethane (DDT) and their eco-environmental assessment in surface sediments from Lake Dongting, the second-largest freshwater lake in China, were studied. Concentrations of HCH (=α-HCH + β-HCH + γ -HCH + δ-HCH) were 0.21-9.59 ng/g dry weight and those of DDT = p,p -DDD + p,p -DDE + o,p -DDT + p,p -DDT) ranged from under detectable limit to 10.15 ng/g dry weight. The ratios of α-HCH to γ -HCH were above 7 at most sampling sites while no or a small amount of β-HCH were found at all sites, suggesting the degradation of HCH used in the history and possibly current use of HCH in the region. The low ratios (below 2.0 in most cases) of (p,p -DDE + p,p -DDD) to p,p -DDT and high levels of individual isomers of DDT at some sites also suggested that there have still been fresh inputs of DDT into Lake Dongting. Through the comparison between concentrations of HCH and DDT residues in sediments of Lake Dongting and those from other places in China and also from the results of our eco-environmental assessment, it can be concluded that Lake Dongting is the water body with high contamination of both HCH and DDT in its sediments in comparison with other water bodies in China.

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Section: Resultsmentioning

confidence: 99%

Determination and Assessment of HCHs and DDTs Residues in Sediments from Lake Dongting, China

Qian

Zheng

Zhang

et al. 2006

Environ Monit Assess

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“…DDT (dichloro diphenyl trichloroethane) sebagai salah satu contoh senyawa organoklorin yang dikenal ampuh sebagai pembasmi malaria secara hati-hati sampai saat ini dan residunya masih ditemukan di air laut dan kerangkerangan. Buttler (1966) melaporkan bahwa DDT dapat mencapai konsentrasi sebesar 25.000 kali lebih tinggi dibandingkan air laut sekitarnya selama 10 hari, tergantung dari temperatur air, lamanya pemaparan dan banyaknya sumber buangan DDT dari sekitarnya Beberapa studi di India menunjukkan bahwa residu pestisida organoklorin ditemukan di air susu ibu (Tanabe et al 1990), udara (Ramesh et al 1989), air (Ramesh et al1990a) dan kerang hijau (Ramesh et al 1990b), sawah dan sedimen (Ramesh et al 1990c), begitu pula di Indonesia ditemukan dalam kerang-kerangan, air dan sedimen (Razak, 1991;1995;1994dan 2004. Li et al (1996) melaporkan bahwa India masih memproduksi senyawa organoklorin (Alfa-HCH) dalam jumlah besar pada tahun 1980 dan 1990.…”

Section: Pendahuluanunclassified

Differences Concentration Distribution and Source of in Organochlorine Pesticides in Water and Sediment in Jakarta Bay Waters During Transition Season

Khozanah¹

2013

J. Ilmu dan Teknologi Kelautan Tropis

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Study on the distribution and sources of organochlorine pesticide concentrations in water samples and sediments from the Jakarta Bay was conducted in April 2011 (transition season I) and June 2011 (dry season) Keywords: organochlorine pesticides, DDT, BHC, Jakarta Bay waters. ABSTRAKPenelitian distribusi kadar dan sumber pestisida organoklorin dalam sampel air dan sedimen di perairan Teluk Jakarta telah dilakukan pada bulan April 2011 (musim peralihan I) dan bulan Juni 2011 (musim kemarau). Tujuan penelitian adalah untuk membedakan keadaan distribusi konsentrasi pestisida di air dan sedimen serta mengidentifikasi sumber pestisida organoklorin menurut musim. Alat yang digunakan untuk mengukur kadar pestisida organoklorin adalah GC/ECD (electron capture detection) Hp 5890 series II. Konsentrasi PO dalam kolom air pada musim peralihan I berkisar 11,596 -74,338 ng/l dengan rata-rata 41,998 ng/l dan pada musim peralihan II sekitar 4,554 -19,119 ng/l dengan rata-rata 7,741 ng/l. Kadar pestisida organoklorin dalam sampel sedimen pada musim peralihan I sekitar 0,936 -2,816 ng/g dengan rata-rata 1,782 ug/g, dan konsentrasi pada musim peralihan II sekitar 0,7691-7,138 ug/g, dengan rata-rata sebesar 2,722 µg/g. Pada kolom air musim peralihan I, rata-rata konsentrasinya lebih tinggi dibandingkan dengan musim peralihan II, sebaliknya kadar dalam sedimennya pada musim peralihan I lebih rendah. Rata-rata kadar pestisida di kolom air lebih tinggi dibandingkan dengan dalam sedimen. Musim berpengaruh terhadap konsentrasi pestisida organoklorin pada kolom air maupun sedimen. Sumber pestisida organoklorin berasal dari kegiatan pertanian yang berada di daratan Cisadane.

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“…India alone uses around 47 000 t of lindane and 19 750 t of DDT annually, and freshwater ecosystems show widespread contamination (e.g. Ramesh et al, 1989;1990) . Effects on aquatic birds have also been described (Douthwaite, 1992).…”

Section: (D) Restrietions Do Not Apply In All Nationsmentioning

confidence: 99%

Birds as indicators of changes in water quality

Ormerod¹,

Tyler²

1993

Birds as Monitors of Environmental Change

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Seasonal variations of organochlorine insecticide residues in air from Porto Novo, South India

Cited by 84 publications

References 15 publications

Determination and Assessment of HCHs and DDTs Residues in Sediments from Lake Dongting, China

Determination and Assessment of HCHs and DDTs Residues in Sediments from Lake Dongting, China

Differences Concentration Distribution and Source of in Organochlorine Pesticides in Water and Sediment in Jakarta Bay Waters During Transition Season

Birds as indicators of changes in water quality

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