To study organochlorine pesticides and organophosphorus pesticides contents and assess pesticideinduced health risk in Armenia,the contents of pesticides were determined in 252 soil samples taken from relatively large...To study organochlorine pesticides and organophosphorus pesticides contents and assess pesticideinduced health risk in Armenia,the contents of pesticides were determined in 252 soil samples taken from relatively large plots of agricultural land in 25 rural communities.The results showed that only∑DDT contents were detected in 39 out of 252 soil samples.The identified contents of∑DDT mainly consisted of pp’-DDE,suggesting historical use.6 out of 12 rural communities are characterized by the presence of former pesticide storehouses site.The excesses versus Maximum Acceptable Concentration were observed in 26 out of 39 samples and ranges from 1.03 to 464.9 times.The health risk assessment showed that non-carcinogenic risk is below the allowable level(HQ<1).However,the carcinogenic risk is above the allowable level of<10^-4 in all cases when∑DDT is detected.Of all studied rural communities,the presence of observed∑DDT and associated risk to the local population was detected mainly in the majority of sampling sites in Jrashen(Ararat region),Aramus(Kotayq region)and Khanjyan(Armavir region).Therefore,special attention should be given to the riskiest rural communities and risk reduction measures are needed to reduce or eliminate observed carcinogenic health effect.展开更多
The research aimed to apply phytoindication for controlling air pollution with chlorine and lead in Yerevan. The research was performed between 2005 and 2008.5 arboreous species were studied： Robinia pseudoacacia L.,...The research aimed to apply phytoindication for controlling air pollution with chlorine and lead in Yerevan. The research was performed between 2005 and 2008.5 arboreous species were studied： Robinia pseudoacacia L., Fraxinus excelsior L., Populus alba L., Morus alba L. and Uitis vinifera L.. The research showed that arboreous plants growing in the city accumulate chlorine and lead. Chlorine concentrations in all 5 species varied from 0.50% to 1.77%, and the maximum value was found in Robiniapseudoacacia L., exceeding the control by 3.6 times. As for the level of lead in plants, the concentration varied between 1.64-7.65 mg/kg, and the maximum rate exceeds the background （2.0 mg/kg） by 3.8 times. The authors produced a schematic map of chlorine distribution all over the city, territory, and detected the most polluted zones. According to the data the autbtors collected, only 3 of 5 studied species displayed high intake rate and tolerance to lead and chlorine pollution： Robinia pseudoacacia L.. Fraxinus excelsior L. and Populus alba L. Thus, the authors advise these species for planting in Yerevan. The results of this research were used by the Municipality of Yerevan for functional tree planting in the city.展开更多
基金the frames of a target Program"Monitoring of residual pesticides in food produced in the Republic of Armenia,2014–2018"funded by the State Committee for Science to the Ministry of Education and Science RA。
文摘To study organochlorine pesticides and organophosphorus pesticides contents and assess pesticideinduced health risk in Armenia,the contents of pesticides were determined in 252 soil samples taken from relatively large plots of agricultural land in 25 rural communities.The results showed that only∑DDT contents were detected in 39 out of 252 soil samples.The identified contents of∑DDT mainly consisted of pp’-DDE,suggesting historical use.6 out of 12 rural communities are characterized by the presence of former pesticide storehouses site.The excesses versus Maximum Acceptable Concentration were observed in 26 out of 39 samples and ranges from 1.03 to 464.9 times.The health risk assessment showed that non-carcinogenic risk is below the allowable level(HQ<1).However,the carcinogenic risk is above the allowable level of<10^-4 in all cases when∑DDT is detected.Of all studied rural communities,the presence of observed∑DDT and associated risk to the local population was detected mainly in the majority of sampling sites in Jrashen(Ararat region),Aramus(Kotayq region)and Khanjyan(Armavir region).Therefore,special attention should be given to the riskiest rural communities and risk reduction measures are needed to reduce or eliminate observed carcinogenic health effect.
文摘The research aimed to apply phytoindication for controlling air pollution with chlorine and lead in Yerevan. The research was performed between 2005 and 2008.5 arboreous species were studied： Robinia pseudoacacia L., Fraxinus excelsior L., Populus alba L., Morus alba L. and Uitis vinifera L.. The research showed that arboreous plants growing in the city accumulate chlorine and lead. Chlorine concentrations in all 5 species varied from 0.50% to 1.77%, and the maximum value was found in Robiniapseudoacacia L., exceeding the control by 3.6 times. As for the level of lead in plants, the concentration varied between 1.64-7.65 mg/kg, and the maximum rate exceeds the background （2.0 mg/kg） by 3.8 times. The authors produced a schematic map of chlorine distribution all over the city, territory, and detected the most polluted zones. According to the data the autbtors collected, only 3 of 5 studied species displayed high intake rate and tolerance to lead and chlorine pollution： Robinia pseudoacacia L.. Fraxinus excelsior L. and Populus alba L. Thus, the authors advise these species for planting in Yerevan. The results of this research were used by the Municipality of Yerevan for functional tree planting in the city.
