Organochlorine pesticides (OCPs) in agricultural soils of Southern Nigeria: spatial distribution, source identification, ecotoxicological and human health risks assessment

Tesi, Juliet N.; Tesi, Godswill O.; Ossai, Jude C.; Agbozu, I. E.

doi:10.1080/15275922.2020.1850570

Cited by 18 publications

(15 citation statements)

References 39 publications

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“…The total time for each analysis was 20.75 min” [ 15 ] Soil 8 DL: 0.002–0.05 QL: 0.158–0.169 80 to 110 5–10 GC-ECD: “The oven temperature of gas chromatography was set to start at 120 °C for 1 min, ramped to 240 °C at the rate of 7 °C/min and held for 5 min. RT: 9.07–16.912 min” [ 155 ] Soil 10 50–120 GC-ECD: “initial oven temperature was 100 °C (equilibrium time 1 min), raised to 200 °C at a rate of 4 °C·min −1 , then increased to 230 °C at 2 °C·min −1 , then raised to 280 °C at 8 °C·min −1 and held for 15 min” [ 156 ] Soil 14 0.01 81–118 GC-MS [ 157 ] Soil 0.03–0.20 90.1–93.7 GC-MS: Splitless, “the initial oven temperature was maintained at 100 °C for 2 min, ramp to 180 °C at a rate of 15 °C/min and then raises to 300 °C at a flow rate of 3 °C/min and held for 9 min” [ 158 ] Soil OCPs (23), CUPs(24) 0.001–7.83 0.003–26.1 Procedural blank: 70-130 Spiked blank: 71.3–126 <20 GC-TQ-MS: Splitless, “held in 1 min at 60 °C, then ramped to 120 °C at the rate of 40 °C/min, and finally up to 310 °C with 5 °C/min and held for 3 min” [ 83 ] Soil 8 4–10 2.4–32 75–10 0.1–4.2 GC-MS: “The temperature of 80 °C lasted for 2 min, then raised to 210 °C (10 °C/min), and remained constant for 10 min, and further raised to 25...…”

Section: Results and Discussion: Literature Reviewmentioning

confidence: 99%

Review of scientific literature on available methods of assessing organochlorine pesticides in the environment

Ohoro,

Wepener

2023

Heliyon

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Section: Results and Discussion: Literature Reviewmentioning

confidence: 99%

Review of scientific literature on available methods of assessing organochlorine pesticides in the environment

Ohoro,

Wepener

2023

Heliyon

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“…Technical endosulfan contains 70% α-endosulfan and 30% β-endosulfan (Tesi et al 2020). Since the αendosulfan decomposed more easily than β-endosulfan in soil, the ratio of α-/β-endosulfan < 2.33 and > 2.33 indicates historical and recent usage of technical endosulfan, respectively (Devi et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Occurrences, Potential Sources and Risk Impacts of Organochlorine Pesticides in the main urban Soil of Changchun, Northeast China: a case study

Zhao

Lai

et al. 2022

Preprint

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48 surface soil samples from the main urban areas in Changchun, Northeast China were analyzed for 18 organochlorine pesticides (OCPs) with the aim of elucidating their contamination status, distribution characteristics, influencing factors, and potential risks in this urban region. The total concentrations of OCPs ranged from 15.63 to 92.79 ng/g, with the geomean of 36.46ng/g. HCHs, DDTs, and Chlordanes were the most dominant OCPs, with γ-HCH and p,p'-DDT being the predominant isomer. Higher concentrations of OCPs mainly concentrated in the northeast and southwest of Changchun city and the artificial influences contributed to the fate of OCPs in the soils. The residues of OCPs were mainly derived from the historical application of the technology DDT, dicofol, and lindane. Pearson’s correlation analysis indicated that TOC was a key factor controlling OCPs accumulation. The data analysis based on the soil quality guidelines (SQGs) suggested that the presence of DDTs, lindane, and heptachlor may pose a certainly toxic ecological threat to the soil organisms. The evaluation results of incremental lifetime cancer risk (ILCR) showed that the cancer risk of OCPs to the posed population was low, while some specific locations with high OCPs residues ought to be a cause for concern.

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“…Where CDIing and CDIDerm are chronic daily intake for ingestion and dermal contact respectively; Risking, Riskinh and RiskDerm are risk for IID respectively. The definition of terms and values of all variables are given [10] and [17] . Usually, HI value greater than 1 and TCR value greater than 1 x 10 -6 indicates the presence of adverse non-cancer and cancer risks respectively.…”

Section: 𝐶𝐷𝐼𝑛𝑐 𝑅𝑓𝐷mentioning

confidence: 99%

“…[28] However, higher levels of OCPs have been reported in agricultural soils from Nigeria. [10,[29][30][31]…”

Section: Ocps Levels In the Soilsmentioning

confidence: 99%

“…Soil OCPs can be transmitted to air, surface and groundwater through volatilization, leaching and runoff; they can also bioaccumulate in the food-chain, causing negative effects to man and other living organisms. [10] Many variables, including the application method, soil characteristics, application frequency etc influence the destiny of OCPs in soils. [11,12] Because of their potential to remain in the environment, bioaccumulate, and create hazardous consequences, they were banned in many nations between the 1970s and 1990s.…”

Section: Introductionmentioning

confidence: 99%

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Distribution, Associated Risks and Sources of Organochlorine Pesticides in Farmland Soils from Ethiope West Area of Delta State, Nigeria

Omayuli,

Emakunu,

Emefe

2024

Int J Res Rev

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rganochlorine pesticides (OCPs) usage provides many advantages for agriculture; however, there are also significant concerns to the environment and public health. Since there is little information available on OCPs' distribution, associated risks and sources in Nigerian farmland soils, this study was carried out. Soil samples were collected from farmlands in ten communities. Samples were extracted with hexane/dichloromethane and cleaned up in a column of silica gel and florisil. The OCPs were measured using a gas chromatograph-mass spectrometry (GC-MS). The ∑20 OCPs levels in the soils varied between 47.5 and 109 ng/g. The OCPs homologues distribution in the soils was in the order of ∑DDTs > ∑Drins > ∑Chlordane > ∑BHCs > ∑Endosulfan. The risks assessment result indicated that there was adverse ecological effect on organisms residing in the soils and there is the likelihood that this effect will be frequently observed. Moreover, there was potential non-carcinogenic and carcinogenic risks for persons exposed to OCPs in these farmland soils. The result of the source identification indicated that historical usage was the main source of OCPs in these farmland soils. Keywords: Soil, Farmland, OCPs, Non-carcinogenic, Carcinogenic, Ethiope West

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Organochlorine pesticides (OCPs) in agricultural soils of Southern Nigeria: spatial distribution, source identification, ecotoxicological and human health risks assessment

Cited by 18 publications

References 39 publications

Review of scientific literature on available methods of assessing organochlorine pesticides in the environment

Review of scientific literature on available methods of assessing organochlorine pesticides in the environment

Occurrences, Potential Sources and Risk Impacts of Organochlorine Pesticides in the main urban Soil of Changchun, Northeast China: a case study

Distribution, Associated Risks and Sources of Organochlorine Pesticides in Farmland Soils from Ethiope West Area of Delta State, Nigeria

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