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排序方式: 共有215条查询结果,搜索用时 15 毫秒
211.
Fok TF Lam HS Ng PC Yip AS Sin NC Chan IH Gu GJ So HK Wong EM Lam CW 《Environment international》2007,33(1):84-92
This study was designed to examine newborn infants in Hong Kong prenatally exposed to levels of methylmercury considered to increase risk of neurotoxic effects and to examine subject characteristics that modify the degree of prenatal mercury exposure. Mercury concentrations in 1057 sets of maternal and cord blood samples and 96 randomly selected maternal hair samples were measured. Subject characteristics were measured or collected by questionnaire. Of the 1057 cord blood samples collected only 21.6% had mercury concentrations less than 29 nmol/L (5.8 micro g/L). Median maternal hair mercury concentration was 1.7 ppm. The geometric mean cord to maternal blood mercury ratio was 1.79 to 1. Increasing maternal fish consumption and maternal age were found to be associated with increased cord blood mercury concentrations. Marine fish consumption increased cord blood mercury concentrations more than freshwater fish (5.09%/kg vs 2.86%/kg). Female babies, maternal alcohol consumption and increasing maternal height were associated with decreased cord blood mercury concentrations. Pregnant women in Hong Kong consume large amounts of fish and as a result, most of their offspring have been prenatally exposed to moderately high levels of mercury. In this population, pregnant women should choose freshwater over marine fish and limit fish consumption. 相似文献
212.
We report a direct immersion SPME-GC/mu ECD method for the determination of non-volatile pollutants (Aroclor 1254) in human blood plasma using an enzymatic proteolytic approach to overcome the protein fouling problem. A nonspecific serine protease, Proteinase K, is used to remove the fouling interference. Significant improvement in relative repeatability from 28.9% to 3.4% (n = 10) was obtained. Analyte recovery up to 93% and detection limit of 1.0 ppb (total PCB) were achieved. 相似文献
213.
214.
Le Lam Hai Pham Anh Thi Hoang 《Environmental science and pollution research international》2022,29(54):81234-81255
Environmental Science and Pollution Research - The Environment Fund is a state financial institution and a non-profit organization, operating mainly in concessional loans with low-interest rates... 相似文献
215.
Pham Thuyen Thi Lam Thanh Phuong Mai Le Dang Hoa Pham Nhien Thi 《Journal of Material Cycles and Waste Management》2023,25(5):2900-2914
Journal of Material Cycles and Waste Management - E-waste is becoming a concern due to its toxic content and serious pollution effect. Many studies have focused on the detrimental impacts of... 相似文献