Analysis of arsenic level in the internal and external environment of drinking-water-borne endemic arsenic poisoning areas and the disease monitoring results in Shaanxi Province in 2023
10.3760/cma.j.cn231583-20240220-00039
- VernacularTitle:2023年陕西省饮水型地方性砷中毒病区人群内外环境砷含量及病情监测结果分析
- Author:
Qiongjie DING
1
;
Xiaoqian LI
;
Rong ZHOU
;
Zhongxue FAN
;
Min YANG
;
Panhong ZHANG
;
Chunyan TIAN
;
Meixuan LU
;
Binbin CHEN
Author Information
1. 陕西省地方病防治研究所地方性氟砷中毒防研室，西安 710003
- Publication Type:Journal Article
- Keywords:
Arsenic poisoning;
Drinking;
Urine;
Evaluation
- From:
Chinese Journal of Endemiology
2025;44(2):119-123
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the operation of water improvement projects in villages affected by drinking-water-borne endemic arsenic poisoning in Shaanxi Province, the arsenic level in both internal and external environments, the trend of disease development and patient management, and evaluate the effectiveness of prevention and control measures.Methods:From March to December 2023, in accordance with the requirements of the "Notice of the Office of Shaanxi Provincial Health Commission on Issuing the Monitoring Plan for Key Endemic Diseases such as Kashin-Beck Disease" and the "Monitoring Plan for Endemic Fluorosis and Arsenism in Shaanxi Province", all villages affected by drinking-water-borne arsenic disease were monitored. Water arsenic testing was carried out in accordance with the "Standard Test Methods for Drinking Water Inorganic Nonmetallic Indicators" (GB/T 5750.5-2006), and the evaluation of whether water arsenic exceeded the standard was conducted based on the "Sanitary Standards for Drinking Water" (GB 5749-2022). According to the "Diagnosis of Endemic Arsenism" (WS/T 211-2015), the arsenic poisoning status of all population in the disease affected areas was investigated. In 5 villages of 3 monitoring counties, 358 people were randomly selected to determine the urinary arsenic level, and the determination was made according to the "Safety Guideline Value of Urinary Arsenic for Human Population" (WS/T 665-2019). According to the "Notice of the National Health Commission on Issuing the Evaluation Measures for Control and Elimination of Key Endemic Diseases (2019 Edition)", elimination evaluation was conducted.Results:A total of 2 cities, 3 counties, 9 towns, and 13 endemic villages were monitored, with a water improvement rate of 100% (13/13), and all were operating normally. The arsenic level in residents' drinking water was < 0.01 mg/L. A total of 12 688 people were examined, and 338 cases of arsenic poisoning were detected, all of whom were historical cases. There were no new cases of arsenic poisoning or skin cancer patients. The geometric mean of urinary arsenic was 0.026 0 mg/L, which was lower than the safety guideline value of 0.032 mg/L for urinary arsenic in the population. All 338 existing arsenic poisoning patients had received family doctor contract services and implemented follow-up management. The drinking-water-borne endemic arsenic poisoning areas counties in Shaanxi Province have reached the elimination standard.Conclusions:The water improvement project in drinking-water-borne endemic arsenic poisoning areas in Shaanxi Province is operating normally. The arsenic content in both the internal and external environments of the population meets the standard. The condition is stable and no new cases have been detected. Follow up management has been implemented for all current cases. All affected counties have reached the elimination standard.
