title: CryptosporidiumContamination and Attributed Risks in Yunlong Lake in Xuzhou, China.
abstract: Swimming in surface water bodies (e.g., lakes, rivers) can expose the human body to substantial risk of infection byCryptosporidium. These findings are from a one-year investigation on the occurrence and distribution of the protozoan parasiteCryptosporidiumin Yunlong Lake, Xuzhou, China.Cryptosporidiumoocysts were detected by immunofluorescence microscopy. From January to November of 2015, 180 samples (120 water samples and 60 sediment samples) were collected and analyzed. Among them, 42 (35%) water samples and 28 (47%) sediment samples tested positive forCryptosporidium. The concentration ofCryptosporidiumoocysts in the water samples was 0-8/10 L and 0-260/g in sediment samples. Results revealed that July was the highest risk period for both swimming and diving with an estimated probability of infection from swimming of greater than 18 per 10,000 swim sessions. It was concluded that swimming or diving in Yunlong Lake has a higher risk ofCryptosporidiuminfection than the acceptable risk level set by the United States Environmental Protection Agency. Thus, regular monitoring of water quality in recreation water bodies is strongly recommended.
authors.affiliation: School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221000, China.
authors.forename: Yadong
authors.initials: Y
authors.lastname: Kong
authors.affiliation: School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221000, China.
authors.forename: Ping
authors.identifier: 0000-0002-2002-3950
authors.initials: P
authors.lastname: Lu
authors.affiliation: Department of Architecture Equipment and Civil Engineering, Jiangsu Vocational Institute of Architectural Technology, Xuzhou 221116, China; JiangSu Collaborative Innovation Center for Building Energy Saving and Construct Technology, Xuzhou 221116, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Yuan
authors.affiliation: School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221000, China.
authors.forename: Jinghui
authors.initials: J
authors.lastname: Niu
authors.affiliation: School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221000, China.
authors.forename: Zhaoji
authors.initials: Z
authors.lastname: Li
authors.affiliation: School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221000, China.
authors.forename: Baisong
authors.initials: B
authors.lastname: Yang