Pesticide residues

Thornburg, Wayne

doi:10.1021/ac60355a004

Cited by 5 publications

(2 citation statements)

References 69 publications

(70 reference statements)

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“…The EDI (Estimated daily intake) and HI (Health risk index) values analyzed from this study are presented in Table 5 and 6 for vegetables and fruits respectively. Theoretically, if Health risk index is greater than 1, then the responsible pesticide may cause potential health risks for systemic effects (Thornburg 1973;Tchounwou et al 2002;Reffstrup et al 2010). The HI values of Aldrin, p,p-DDE, Cis-Chordane, p,p-DDT, Endrin, α-Endosulfan and Lindane-I in vegetables were 0.109, 0.006, 0.396, 0.008, 0.153278, 0.882 and 0.0198 respectively.…”

Section: Health Risk From Consuming These Fruit and Vegetable Samplesmentioning

confidence: 99%

Human Health Risk Assessment Through the Detection of Organochlorine Pesticides in Vegetables and Fruits from Dhaka, Bangladesh by Gas Chromatography Coupled to Mass Spectrometry (GC-MS)

Hasan

Das²,

Satter

2021

Preprint

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This study investigated the levels of Organochlorine pesticides (OCPs) in vegetables and fruits from local markets of Dhaka, Bangladesh using gas chromatography coupled to mass spectrometry (GC-MS/MS) and analyzed the possible health risks of peoples through consumption of those fruits and vegetables. A total of 100 vegetables and 100 fruits samples were analyzed and 45% of vegetable samples and 40% of fruit samples were found to be contaminated with OCPs residues. Aldrin, p,p-DDE, Cis-Chordane, p,p-DDT, Endrin, α-Endosulfan and Lindane-I were detected in vegetable samples while Aldrin, p,p-DDE, p,p-DDT, α-Endosulfan and Lindane-I were detected in fruit samples. The HI values of Aldrin, p,p-DDE, Cis-Chordane, p,p-DDT, Endrin, α-Endosulfan and Lindane-I in vegetables were 0.109, 0.006, 0.396, 0.008, 0.153, 0.882 and 0.019 respectively while HI values of Aldrin, p,p-DDE, p,p-DDT, α-Endosulfan and Lindane-I in fruit samples were 0.0155, 0.0005, 0.0002, 0.0339, 0.0019 respectively. The average concentration of detected OCPs residues were below the FAO’s recommended maximum residue limits (MRL). It is therefore concluded that, even though OCPs residues are within the maximum tolerance range but continuous accumulation in consumer body through consumption of such vegetables and fruits may lead to chronic effects that could be fatal.

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Section: Health Risk From Consuming These Fruit and Vegetable Samplesmentioning

confidence: 99%

Human Health Risk Assessment Through the Detection of Organochlorine Pesticides in Vegetables and Fruits from Dhaka, Bangladesh by Gas Chromatography Coupled to Mass Spectrometry (GC-MS)

Hasan

Das²,

Satter

2021

Preprint

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“…As some of these impurities have markedly different physical properties, even a small amount of a contaminant can significantly affect results. 15 With the proper operating parameters, the EC-GLC method allows for a separate quantification of the electron capturing isomers and degradation products of DDT (177)(178)(179)(180)(181)(182)(183)(184)(185). Thus, contaminants are monitored.…”

Section: Analytical Determinationmentioning

confidence: 99%

Investigation of the contribution of aquatic humus to the transport of DDT in the environment

Blunk

2000

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1982 ABSTRACTThe fate and transport of insoluble, hydrophobic organic pollutants in the aquatic environment constitutes a prominent area of concern. It is thought that pollutants of this nature may exist in association with organic carbon, which is predominantly aquatic humus. This type of association could significantly affect the kinetics of such transformation processes as volatilization or chemical and biological degradation of the pollutant. While dissolved organic matter (DOM) comprises the bulk of organic carbon (or aquatic humus) in natural waters, the interact·io',\ between naturally occurring DOM and insoluble organic pollutants has not been quantified.The work presented in thi s di ssertation is an effort to quantify the, effect of dissolved organic matter on the solubility in water and, hence, the transport of hydrophobic organic compounds (specifically, DDT) in the environment.Saturated aqueous solutions of DDT were generated by a method that is different from those used by other workers. Within a closed system, an excess of sol id DDT was allowed to vaporize and enter an aqueous solution through the gas phase. The concentraction of DDT in solution increased with time, 1 eve 1 i ng off when equil i bri urn and a saturated solution was established.The solubility of p,p'-DDT in distilled water was determined to be 1.87 ± .01 ppb. The solubility of the o,p'-DDT isomer in distilled water was determined to be 4.88 ± .03 ppb. The concentrations of p,pl-3 DDT and o,pl-DDT in distilled water solutions containing dissolved organic matter were definitely higher than the aqueous solubilities of these compounds. A minimum value for the DDT/DOM partition coefficient (Kp) in water was determined. This partition coefficient, when normalized to organic carbon, is referred to as Koc (K oc = Kp/fraction organic carbon). A minimum log Koc for both p,pl-DDT and o,pl-DDT was determined to be 4.7 ± .2 log units. Under environmental conditions, this partition coefficient indicates that the majority of DDT present in aqueous systems will be associated with dissolved organic matter.

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Analysis of sulphur-containing carbamates by formation of derivatives in the gas—liquid chromatograph using trimethylphenylammonium hydroxide

Bromilow

Lord

1976

Journal of Chromatography A

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Pesticide residues

Cited by 5 publications

References 69 publications

Human Health Risk Assessment Through the Detection of Organochlorine Pesticides in Vegetables and Fruits from Dhaka, Bangladesh by Gas Chromatography Coupled to Mass Spectrometry (GC-MS)

Human Health Risk Assessment Through the Detection of Organochlorine Pesticides in Vegetables and Fruits from Dhaka, Bangladesh by Gas Chromatography Coupled to Mass Spectrometry (GC-MS)

Investigation of the contribution of aquatic humus to the transport of DDT in the environment

Analysis of sulphur-containing carbamates by formation of derivatives in the gas—liquid chromatograph using trimethylphenylammonium hydroxide

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