ÖÐÎĹؼü´ÊÉéÒûÓÃË®±©Â¶²ÎÊý½¡¿µ·çÏÕÆÀ¼Û·çÏÕãÐÖµ Ó¢ÎĹؼü´Êarsenicdrinking waterexposure parametershealth risk assessmentthreshold value

×÷Õß	µ¥Î»	E-mail
ÇØÄþ	±±¾©¿Æ¼¼´óѧÄÜÔ´Óë»·¾³¹¤³ÌѧԺ, ±±¾© 100083 ±±¾©ÊгÇÊÐÅÅË®¼à²â×ÜÕ¾ÓÐÏÞ¹«Ë¾, ±±¾© 100012	qinning@ustb.edu.cn
ÁõÔËì¿	±±¾©¿Æ¼¼´óѧÄÜÔ´Óë»·¾³¹¤³ÌѧԺ, ±±¾© 100083
ºîÈÙ	±±¾©¿Æ¼¼´óѧÄÜÔ´Óë»·¾³¹¤³ÌѧԺ, ±±¾© 100083
Íõ²ÊÔÆ	±±¾©ÊгÇÊÐÅÅË®¼à²â×ÜÕ¾ÓÐÏÞ¹«Ë¾, ±±¾© 100012
Íõ±´±´	±±¾©¿Æ¼¼´óѧÄÜÔ´Óë»·¾³¹¤³ÌѧԺ, ±±¾© 100083
¶ÎСÀö	±±¾©¿Æ¼¼´óѧÄÜÔ´Óë»·¾³¹¤³ÌѧԺ, ±±¾© 100083

ÖÐÎÄÕªÒª ͨ¹ýÎÄÏ×µ÷ÑÐÊÕ¼¯ÎÒ¹ú3ÀàÖ÷ÒªÒûÓÃË®ÀàÐ͵Ä×ÜÉéŨ¶È.ͨ¹ý»Ø¹éÄ£ÐÍ»ñµÃ²»Í¬ÄêÁä¶ÎÈËȺÒûË®±©Â¶²ÎÊý·Ö²¼Ä£Ê½.»ùÓÚ¸ÅÂÊ·½·¨ÆÀ¼Û²»Í¬Ë®ÌåºÍ²»Í¬ÈËȺÓÉÓÚÉ鱩¶Ôì³ÉµÄÖ°©·çÏպͷÇÖ°©·çÏÕ.½á¹û·¢ÏÖ£¬È«¹ú¸÷ÀàË®ÌåµÄ×ÜÉéŨ¶È¼¸ºÎ¾ùֵΪ£¨13.0±38.1£©¦Ìg·L^-1.ÆäÖÐÒûÓÃË®ÖеÄ×î¸ßÉéŨ¶È³öÏÖÔÚÄÚÃɹţ¬¹ãÎ÷ºÍɽÎ÷ÒûÓÃË®ÖÐÒ²Óнϸß×ÜÉé¼ì³ö.ÓëÏà¹Ø±ê×¼ÖеÄÉéŨ¶È±ê×¼Ïà±È£¬Î´¾­´¦ÀíµÄ¾®Ë®ºÍδ¾­´¦ÀíµÄµØ±íˮԴˮ³¬±êµÄ¸ÅÂÊ·Ö±ðΪ23.2%ºÍ18.4%.·ÇÖ°©·çÏÕÆÀ¹À·¢ÏÖ£¬¾®Ë®ºÍµØ±íˮԴˮÒûÓÃÈËȺ³¬¹ýµ¥ÈÕ±©Â¶¼ÁÁ¿ãÐÖµµÄ¸ÅÂÊ·Ö±ðΪ24.0%ºÍ19.5%.Ö°©·çÏÕÆÀ¹À·¢ÏÖ£¬ÎÒ¹úÈ«ÈËȺÖÕÉúÒûË®ÉéÉãÈëµ¼ÖµÄÖ°©·çÏÕ£¨LCR£©ÖÐλÊýΪ3.22×10^-5£¬´¦ÓڿɽÓÊÜˮƽ.ÆäÖÐ18~45ËêÈËȺÓÐ×î´óµÄ·çÏÕ¹±Ï×£¬LCRÖÐλÊýΪ1.37×10^-5.¾®Ë®ºÍµØ±íˮԴˮÒûÓÃÈËȺLCRÈÔÓÐÒ»¶¨¸ÅÂʳ¬¹ýÃÀ¹ú»·±£Êð£¨US EPA£©¹æ¶¨µÄÑÏÖØ·çÏÕˮƽ.×ÛÉÏËùÊö£¬ÎÒ¹ú¾ÓÃñ´æÔÚDZÔÚµÄÒûÓÃË®É鱩¶½¡¿µ·çÏÕ£¬ÐèÒª½øÒ»²½¼ÓÇ¿ÒûÓÃË®ÉéÎÛȾ¿ØÖÆÒÔ½µµÍÉéÒý·¢µÄ½¡¿µ·çÏպͱ£ÕÏÒûË®°²È«.ͬʱ½¨Òé¼ÓÇ¿·çÏÕãÐÖµÑо¿ÒÔÆÚÕæʵ·´Ó³É鱩¶·çÏÕ£¬Îª±£»¤¾ÓÃñ½¡¿µÌṩ¿ÆѧÒÀ¾Ý. Ó¢ÎÄÕªÒª The total arsenic concentrations of the three main drinking water types in China were determined through a systematic literature review. The distribution models of drinking water exposure parameters for different age groups were obtained using the regression method. The carcinogenic and non-carcinogenic risks of different population groups caused by arsenic exposure through different drinking water types were evaluated by a probabilistic risk assessment. The results showed that the geometric mean of total arsenic content in all the drinking water samples in China was (13.0±38.1) ¦Ìg·L^-1. The highest arsenic content was found in the Inner Mongolia Autonomous Region, followed by Guangxi and Shanxi. Based on the relevant standards for drinking water quality, the probability exceeding the threshold value of groundwater and source water is 23.2% and 18.4%, respectively. According to the results of non-carcinogenic risk assessment, the probability of the residents drinking well water and surface water from the water source area exceeding the daily average exposure dose threshold was 24.0% and 19.5%, respectively. According to the carcinogenic risk assessment, the median of carcinogenic risk caused by arsenic in drinking water in China was 3.22×10^-5, which is acceptable. The population group of 18-45 years old had the highest risk, and the median LCR was 1.37×10^-5. There was still a certain probability that the LCR of drinking well water and surface water would exceed the acceptable risk level recommended by the US EPA. In conclusion, the potential health risks caused by arsenic exposure through drinking water intake exist among Chinese residents. Further control of the arsenic concentration in drinking water is required to reduce the health risk and improve the safety of drinking water. Meanwhile, it is suggested to strengthen the research on risk threshold to provide a scientific basis for the residents' health protection.

PDFÈ«ÎÄÏÂÔصØÖ·:

https://www.hjkx.ac.cn/hjkx/ch/reader/create_pdf.aspx?file_no=20210726&flag=1&journal_id=hjkx&year_id=2021