Effects of Exposure to Arsenic through Drinking Water on Simple Visual Reaction Time and IQ of Combined Raven's Test in Children
- VernacularTitle:饮水砷暴露对儿童视觉简单反应时及联合型瑞文IQ值的影响
- Author:
Fenghong ZHAO
;
Yan WANG
;
Di SUN
- Publication Type:Journal Article
- Keywords:
Arsenic;
Children;
Simple visual reaction time;
Combined Raven's Test
- From:
Journal of Environment and Health
2007;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the intellectual effects of arsenic in drinking water on children. Methods Intellectual effects were evaluated by computer-based reaction time and Combined Raven's Test. Children aged 9 to 11 years living in three villages of Inner Mongolia were investigated in April, 2006. The arsenic concentrations in the drinking water of the three villages were 0.16 mg/L, 0.09 mg/L and less than 0.05 mg/L (control group). Results The mean, fastest and slowest visual reaction time of children exposed to the high levels of arsenic through drinking water were longer than those of children in control. The differences of mean, fastest and slowest visual reaction time between girls exposed to 0.16 mg/L arsenic and control were significant; the differences of the mean and slowest visual reaction time between 10-year old children exposed to 0.16 mg/L arsenic and control were significant. IQ of girls exposed to 0.16 mg/L arsenic was significantly lower than that in control. Conclusion Intellectual function of children can be affected by arsenic in drinking water, and the intellectual effects of arsenic on girls are more obvious.
