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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Yuan, Zhimin Yao, Jun Liu, Haijun Han, Jun Trebse, Polonca |
| Description | Author Affiliation: Yuan Z ( School of Civil & Environmental Engineering and National 'International Cooperation Based on Environment and Energy', and Key Laboratory of 'Metal and Mine Efficiently Exploiting and Safety' Ministry of Education, University of Science and Technology Beijing, 100083 Beijing, PR China.); Yao J ( School of Civil & Environmental Engineering and National 'International Cooperation Based on Environment and Energy', and Key Laboratory of 'Metal and Mine Efficiently Exploiting and Safety' Ministry of Education, University of Science and Technology Beijing, 100083 Beijing, PR China. Electronic); Liu H ( School of Civil & Environmental Engineering and National 'International Cooperation Based on Environment and Energy', and Key Laboratory of 'Metal and Mine Efficiently Exploiting and Safety' Ministry of Education, University of Science and Technology Beijing, 100083 Beijing, PR China.); Han J ( School of Civil & Environmental Engineering and National 'International Cooperation Based on Environment and Energy', and Key Laboratory of 'Metal and Mine Efficiently Exploiting and Safety' Ministry of Education, University of Science and Technology Beijing, 100083 Beijing, PR China.); Trebse P ( Laboratory for Environmental Research, University of Nova Gorica, Vipavska 13, SI-5000 Nova Gorica, Slovenia.) |
| Abstract | Honey can be polluted due to environmental pollution and misuse of beekeeping practices. In the present study, photodegradation experiments of organophosphorus pesticides (coumaphos, methyl parathion and fenitrothion) in honey medium were conducted using Atlas Suntest simulator CPS+ as a sunlight producer. Photodegradation experiments were conducted under three different intensities as 250W/m(2), 500W/m(2) and 750W/m(2) to evaluate the impact of sunlight intensity on removal of OPs in honey medium. Significant decreases of three OPs' concentrations were observed. Coumaphos showed the highest degradability, reaching a degradation percentage of 90 percent within 15min. After 1h irradiation, residual percentages of coumaphos were 6.62 percent for 250W/m(2), 3.48 percent for 500W/m(2) and 2.98 percent for 750W/m(2), respectively. Methyl parathion and fenitrothion also could be removed through photodegradation efficiently. After 1h irradiation, the residual percentages of methyl parathion and fenitrothion under 750W/m(2) sunlight irradiation were 26.89 percent and 16.70 percent, respectively. Intensity of sunlight showed a positive impact on removal of OPs in honey medium. The higher intensity, the lower residual percentage. Photodegradation of three OPs fitted well with pseudo-first order kinetics. Half-lives calculated from pseudo-first order kinetics were 17.61min (250W/m(2)), 16.67min (500W/m(2)) and 17.58min (750W/m(2)) for coumaphos, 57.62min (250W/m(2)), 34.13min (500W/m(2)) and 31.69min (750W/m(2)) for methyl parathion and 144.70min (250W/m(2)), 95.47min (500W/m(2)) and 22.57min (750W/m(2)) for fenitrothion, respectively. Most of the three OPs could dissipate in a short time under sunlight irradiation. Photodegradation could be accepted as an appropriate method for the removal of OPs in honey medium. |
| File Format | HTM / HTML |
| ISSN | 01476513 |
| Volume Number | 108 |
| e-ISSN | 10902414 |
| Journal | Ecotoxicology and Environmental Safety |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-10-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Sciences Coumaphos Chemistry Fenitrothion Honey Methyl Parathion Photolysis Environmental Pollutants Feasibility Studies Insecticides Kinetics Sunlight Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Pollution Health, Toxicology and Mutagenesis Public Health, Environmental and Occupational Health |
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