沧州市居民生活饮用水中碘的地理分布情况调查
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摘要
目的调查沧州市居民饮用水中的碘含量,为水碘的地理分布区域划分以及甲状腺疾病的防治提供科学合理的依据。方法调查沧州市16个县(市、区),采用10%抽样法,每个县(市、区)按东、西、南、北、中地理区域划分5个抽样片区,所选定区域同样按照以上地理区域划分,每个片区根据区域大小随机抽取行政村(居委会)采集水样,采用砷铈催化分光光度法测定水样碘含量。结果 2016年3-12月在沧州市共调查82个乡镇463个村,采集水样1 002份,水样来源包括951份地下水和51份地表水。测得水样中碘含量范围3.1224～1 192.0729μg/L,水碘含量中位数为113.4902μg/L。沧州市西、北部地区水碘中位数<10μg/L的乡镇有42个,占总乡镇数的21.76(%),覆盖人口数约130.2万。沧州市中、南、东部地区水碘中位数大于100μg/L的乡镇有93个,占总乡镇数的48.19 (%),覆盖人口数约337.36万。将水碘含量与沧州市地理区域图结合,绘制得到沧州市居民饮用水碘地理分布图。结论沧州地区居民饮用水中碘含量地理分布不均匀,西、北部低碘区与东、南部高碘地区分布差异明显,总体碘含量地域分布为西低东高。
Objective The aim of this study was to investigate iodine content in residents' drinking water in Cangzhou city, in order to provide scientific and reasonable evidence for the geographical distribution of iodine and the prevention and treatment of thyroid disease. Methods 10% sampling method was used to investigate 16 counties(city, area) in Cangzhou. Each county(city, area) was geographically split into northern, southern, eastern, western and central regions. The selected one from the above five regions(town, street offices) was in accordance with the above same geographical division. According to area size,the administrative villages(neighborhood committees) were sampled randomly and then the water samples were collected.Arsenic-cerium catalytic spectrophotometry was used to determine iodine content in water. Results A total of 82 towns and463 villages were investigated in Cangzhou city from March to December in 2016. 1002 water samples including 951 samples of ground water and 51 samples of surface water were collected. The iodine content of the samples was measured from3.1224-1192.0729 μg/L, and the median iodine content in the water was 113.4902 μg/L. There were 42 towns with a median of 10 μg/L of water iodine in the western and northern regions of Cangzhou, accounting for 21.76 % of the total number of towns, covering a population of about 1.302 million. The median amount of water iodine in the central, southern and eastern regions of Cangzhou city was greater than 100 μg/L, and there were 93 towns with high iodine content in drinking water,accounting for 48.19 % of the total number of villages and towns, covering a population of about 3,373,600. The geographical distribution map of drinking water iodine in Cangzhou city was drawn by combining the results of water iodine content with the geographical map of Cangzhou city. Conclusion The geographical distribution of iodine content in drinking residential water in Cangzhou area was not uniform. The distribution of iodine content in low iodine areas in the western and northern regions is obviously different from that in high iodine areas in the eastern and southern region, and the overall geographical distribution of iodine content was low in the western region and high in the eastern region.
Objective The aim of this study was to investigate iodine content in residents' drinking water in Cangzhou city, in order to provide scientific and reasonable evidence for the geographical distribution of iodine and the prevention and treatment of thyroid disease. Methods 10% sampling method was used to investigate 16 counties(city, area) in Cangzhou. Each county(city, area) was geographically split into northern, southern, eastern, western and central regions. The selected one from the above five regions(town, street offices) was in accordance with the above same geographical division. According to area size,the administrative villages(neighborhood committees) were sampled randomly and then the water samples were collected.Arsenic-cerium catalytic spectrophotometry was used to determine iodine content in water. Results A total of 82 towns and463 villages were investigated in Cangzhou city from March to December in 2016. 1002 water samples including 951 samples of ground water and 51 samples of surface water were collected. The iodine content of the samples was measured from3.1224-1192.0729 μg/L, and the median iodine content in the water was 113.4902 μg/L. There were 42 towns with a median of 10 μg/L of water iodine in the western and northern regions of Cangzhou, accounting for 21.76 % of the total number of towns, covering a population of about 1.302 million. The median amount of water iodine in the central, southern and eastern regions of Cangzhou city was greater than 100 μg/L, and there were 93 towns with high iodine content in drinking water,accounting for 48.19 % of the total number of villages and towns, covering a population of about 3,373,600. The geographical distribution map of drinking water iodine in Cangzhou city was drawn by combining the results of water iodine content with the geographical map of Cangzhou city. Conclusion The geographical distribution of iodine content in drinking residential water in Cangzhou area was not uniform. The distribution of iodine content in low iodine areas in the western and northern regions is obviously different from that in high iodine areas in the eastern and southern region, and the overall geographical distribution of iodine content was low in the western region and high in the eastern region.
引文
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[11]靳玲,陈伟,杨钢,等.2012年西安市学龄儿童碘营养状况分析[J].现代预防医学,2014,41(5):831-833.
[2]宋文安,胡静垚,陈曼曼,等.蚌埠市不同供水类型饮用水水碘调查分析[J].安徽预防医学杂志,2018,24(3):188-191, 218.
[3]张媛静,张玉玺,向小平,等.沧州地区地下水碘分布特征及其成因浅析[J].地学前缘,2014,21(4):59-65.
[4]中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB 16005-2009碘缺乏病病区划分[S].北京:中国标准出版社,2009.
[5]中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB/T 19380-2016水源性高碘地区和高碘病区的划定[S].北京:中国标准出版社,2016.
[6]贾丽辉,周荣华,马东瑞,等.沧州市水源性高碘分布及高碘病情调查分析[J].中国地方病防治杂志,2010,25(2):117-118.
[7]李菊,李冬,洪守祥,等.学龄前儿童碘营养状况与体重指数关系的横断面研究[J].现代预防医学,2018,45(24):4447-4451,4455.
[8]姜丽杰,李文君.张家口市10年碘盐监测结果及问题分析[J].现代预防医学,2014,41(12):2292-2293, 2300.
[9]周思韩,王婉薇.2017年内江市居民生活饮用水水碘分布调查结果分析[J].中国地方病防治杂志,2017,32(6):631-632.
[10]上官俊,郑建刚,李志宏.江西省不同土壤和水中碘含量调查[J].现代预防医学,2016,43(10):1763-1765.
[11]靳玲,陈伟,杨钢,等.2012年西安市学龄儿童碘营养状况分析[J].现代预防医学,2014,41(5):831-833.