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Objective To investigate the epidemic situation of trematode Aspidogastrea in the Huaihe River. Methods The mussels in the Huaihe River were collected numbered and dissected to detect the trematode and the species of trematodes were identified after dyeing. Results Totally 79 mussels were collected and the trematode Aspidogastrea were found from 23 mussels with the infection rate of 29.11% 209 trematode Aspidogastrea were collected and the average infectiosity of mussels was 9.09. Conclusion Trematode Aspidogastrea is endemic in the Huaihe River and the species is Aspidogaster sp.
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Objective This study was to understand the status of pollution on drinking water, by volatile organic compounds(VOCs),among rural residents living in the basin of Huaihe River. Relationship between the morbidity,morbidity of cancers and VOCs were also explored. Methods 28 villages were chosen from Xuyi,Jinhu,Chuzhou along the Huaihe River,with water samples collected from ditch pond water,shallow wells,deep wells in November-December 2010. VOCs indicators were evaluated according to the Standard Quality GB 5749-2006 for Drinking Water. Results Methylene chloride,chloroform,benzene and carbon tetrachloride were all detected in 76 water samples. The rates of chloroform,benzene,carbon tetrachloride which exceeding the quality standards were 3.95%,21.05% and 22.37%,but no significant differences were found among these three water resources in chloroform,benzene or carbon tetrachloride. Results from the correlation analysis showed that benzene had positive correlation with tumor deaths(r=0.24,P<0.05). Results from the risk assessment on health showed that some chloroform,benzene,carbon tetrachloride products which were related to the risks of cancers were exceeding the acceptable ranges of risk,with the rates as 28.95%,22.37% and 64.47% but with no significant differences among the three water resources(P>0.05). Conclusion Drinking waters for rural residents along the Huaihe River were polluted while VOCs might have related to tumor incidence with potential impact and risk to the health of local residents.
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Objective This study was to understand the status of pollution on drinking water, by volatile organic compounds(VOCs),among rural residents living in the basin of Huaihe River. Relationship between the morbidity,morbidity of cancers and VOCs were also explored. Methods 28 villages were chosen from Xuyi,Jinhu,Chuzhou along the Huaihe River,with water samples collected from ditch pond water,shallow wells,deep wells in November-December 2010. VOCs indicators were evaluated according to the Standard Quality GB 5749-2006 for Drinking Water. Results Methylene chloride,chloroform,benzene and carbon tetrachloride were all detected in 76 water samples. The rates of chloroform,benzene,carbon tetrachloride which exceeding the quality standards were 3.95%,21.05% and 22.37%,but no significant differences were found among these three water resources in chloroform,benzene or carbon tetrachloride. Results from the correlation analysis showed that benzene had positive correlation with tumor deaths(r=0.24,P<0.05). Results from the risk assessment on health showed that some chloroform,benzene,carbon tetrachloride products which were related to the risks of cancers were exceeding the acceptable ranges of risk,with the rates as 28.95%,22.37% and 64.47% but with no significant differences among the three water resources(P>0.05). Conclusion Drinking waters for rural residents along the Huaihe River were polluted while VOCs might have related to tumor incidence with potential impact and risk to the health of local residents.
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Objective To investigate the ecological habit and characteristics of Trichobilharzia cercariae in the Huaihe river system. Methods During June of 2002-May of 2003, Radix auricularia snails were collected monthly in Yaohe Fishery of the branch of the Huaihe River. The cercariae, released from the positive snails and collected by Shade Drop Bottle, were examined by direct press. Ducklings were infected by cercariae with different ages and examined for the infection by miracidia hatching method.Results The results showed a typical seasonal fluctuation in infection rate of the snails, i.e. the cercariae detection rate was 0.81% in July, 0.65% in June, 0.07%-0.26% in April, May, August, September and October respectively, with a significant difference (? 2=26.73, P
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upper and they were all higher compared with the control (P
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Parafossarulus striatulus, Pseudorasbora parva and brood ducks are involved in the lifecycle of Metorchis orientalis. Natural nidi of M.orientalis are confirmed in Huaihe River Basin.