PMID- 25864079 OWN - NLM STAT- MEDLINE DCOM- 20151002 LR - 20181202 IS - 1573-2959 (Electronic) IS - 0167-6369 (Linking) VI - 187 IP - 5 DP - 2015 May TI - Estimation of human health risk associated with the consumption of pesticide-contaminated vegetables from Kumasi, Ghana. PG - 244 LID - 10.1007/s10661-015-4471-0 [doi] AB - Analysis of pesticides consisting of 12 organophosphates (OPs), 10 organochlorines (OCs), and 6 pyrethroids in vegetables from Kumasi was conducted. Vegetable samples comprising 20 each of eggplants, okra, and tomatoes were analyzed. The method involves solvent extraction of pesticide residues followed by cleanup using silica gel. Residue analysis was carried out using a GC equipped with pulsed flame photometric detector for OP residues and electron capture detector for OC and pyrethroid residues. The results revealed that methamidophos exceeded the maximum residue limits (MRLs) in all vegetable commodities. Levels of malathion and dimethoate also exceeded the MRLs in eggplant and tomato samples. Endrin, alpha-endosulfan, gamma-hexachlorocyclohexane (HCH), gamma-chlordane, and heptachlor exceeded their MRLs in okra samples whereas methoxychlor, allethrin, and deltamethrin exceeded in eggplant samples. Health risk estimation revealed that dimethoate in tomato and endrin, heptachlor, gamma-HCH, and gamma-chlordane in okra could not pose potential toxicity to the consumer. The combined risk index showed no health risk to consumers due to intake of pyrethroid OC and OP residue on these vegetables. The overall risk index for combined pesticides due to consumption of all the vegetables was higher than 1, which signifies potential health risk to consumers. OPs were the major risk contributor for both eggplant and tomatoes which accounted for 87.78 and 95.84%, respectively, of the combined risk of pesticides in the vegetables. However, OC with 97.94% of the combined risk index was the major risk contributor for the okra. The carcinogenic risk of the OCs in okra was of no concern since their carcinogenic rates were below the acceptable risk level. FAU - Akoto, Osei AU - Akoto O AD - Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, wofakmann@yahoo.com. FAU - Gavor, Sandra AU - Gavor S FAU - Appah, Martin K AU - Appah MK FAU - Apau, Joseph AU - Apau J LA - eng PT - Journal Article DEP - 20150413 PL - Netherlands TA - Environ Monit Assess JT - Environmental monitoring and assessment JID - 8508350 RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Nitriles) RN - 0 (Organophosphates) RN - 0 (Pesticide Residues) RN - 0 (Pesticides) RN - 0 (Pyrethrins) RN - 12789-03-6 (Chlordan) RN - 2JTS8R821G (decamethrin) RN - 59NEE7PCAB (Hexachlorocyclohexane) RN - 7GLS9ACN3L (Heptachlor) RN - OKA6A6ZD4K (Endosulfan) SB - IM MH - Chlordan/analysis MH - Endosulfan/analysis MH - Environmental Exposure/*statistics & numerical data MH - *Environmental Monitoring MH - Food Contamination/*statistics & numerical data MH - Ghana MH - Heptachlor/analysis MH - Hexachlorocyclohexane/analysis MH - Humans MH - Hydrocarbons, Chlorinated/analysis MH - Nitriles MH - Organophosphates/analysis MH - Pesticide Residues/analysis MH - Pesticides/*analysis MH - Pyrethrins/analysis MH - Risk MH - Risk Assessment MH - Vegetables/*chemistry EDAT- 2015/04/13 06:00 MHDA- 2015/10/03 06:00 CRDT- 2015/04/13 06:00 PHST- 2014/10/21 00:00 [received] PHST- 2015/03/23 00:00 [accepted] PHST- 2015/04/13 06:00 [entrez] PHST- 2015/04/13 06:00 [pubmed] PHST- 2015/10/03 06:00 [medline] AID - 10.1007/s10661-015-4471-0 [doi] PST - ppublish SO - Environ Monit Assess. 2015 May;187(5):244. doi: 10.1007/s10661-015-4471-0. Epub 2015 Apr 13.