کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6328045 | 1619770 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Levels of polychlorinated biphenyls in settled house dust from urban dwellings in China and their neurodevelopmental effects on preschool-aged children
ترجمه فارسی عنوان
سطوح دی ا فنیل های پلی کربنات در گرد و غبار خانه های مسکونی از خانه های شهری در چین و تأثیرات عصبی آنها بر کودکان پیش دبستانی
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کلمات کلیدی
RSDPCBsGSDIDLSVOCsSRMMDLGFAASS/N - S / Nrelative standard deviation - انحراف استاندارد نسبیgeometric standard deviation - انحراف استاندارد هندسیPolychlorinated biphenyls - بیفنیل پلیکلر Semi-volatile organic compounds - ترکیبات آلی نیمه فرارneurodevelopment - توسعه عصبیshd - شادGraphite furnace atomic absorption spectrometry - طیف سنجی جذب اتمی کوره گرافیتDevelopmental quotient - فاکتور رشدMethod Detection Limit - محدودیت تشخیص روشGeometric mean - میانگین هندسیSignal-to-noise ratio - نسبت سیگنال به نویزselected-reaction monitoring - نظارت بر واکنش انتخاب شدهPreschool - پیشدبستانی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
We investigated the levels of polychlorinated biphenyls (PCBs) in settled house dust (SHD) from urban dwellings with resident preschool-aged children in Nanjing, China. The possible neurodevelopmental effects of house-dust PCBs were also explored. SHD was collected from 114 urban houses. The levels of 39 PCB congeners were measured by gas chromatography-tandem mass spectrometry. The Child Behavior Checklist and the Gesell Development Inventory were used to evaluate the child's development. All 39 target congeners measured were detected. The mass percentage of di-PCBs was the highest at 47.8%, followed by tetra- and tri-PCBs at 16.8% and 13.0%, respectively. Spearman's rho correlation showed that di-, tri-, hexa-, hepta-, nona- and total PCBs were positively associated with somatic, thought problem and total problem scores (0.24 < r < 0.36). After dichotomization at the 75th percentile PCB concentration, we found that the higher PCB3, 6, 12, 25, 44, 71, 174 and 203 might increase the risk of certain behavior problems. Moreover, among the lower-chlorinated PCBs, PCB3 and PCB4 showed some risk of adaptive and gross motor abnormality, respectively. In conclusion, PCBs (especially lower-chlorinated PCBs) are ubiquitous in urban SHD in Nanjing and may carry a risk of certain developmental abnormalities. The potential adverse effects of postnatal exposure to PCBs on the behavior and neurodevelopment of preschool-aged children need to be studied in larger follow-up studies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 505, 1 February 2015, Pages 402-408
Journal: Science of The Total Environment - Volume 505, 1 February 2015, Pages 402-408
نویسندگان
Bing-Ling Wang, Shu-Tao Pang, Jian-Ping Sun, Xiao-Ling Zhang, Xi-Ling Li, Yong-Gang Sun, Xiao-Mei Lu, Qi Zhang,