A perusal on the correlation of pesticide application on tobacco growing in the districts of NWFP-Pakistan and cancers incidence

Tobacco is an important cash crop in Pakistan. It is a sensitive plant prone to many bacterial, fungal, and viral diseases. It is also attacked by several species of worms, beetles and moths. Therefore high levels of pesticides are used to grow tobacco. The obvious benefits from the use of the pesticides are so spectacular that some of the problems associated with their use are not recognized. However, many of these pesticides are highly toxic and have impacts on tobacco workers, especially occupational exposures, which are the direct victims of pesticides poisoning. The victims include many children, pregnant women and elders who all participate in tobacco production. Pesticides either cause or exacerbate a number of illnesses in farmers and farm workers when they are exposed to them. So, occupational exposure is probably one of the most important impacts on tobacco farmers, since they and their families are exposed constantly to a large amount of pesticides. This exposure can lead to many serious problems. No study has been done to identify the effects of tobacco pesticides on human health especially on farmers health in Pakistan. The objective of this paper is to establish a correlation of pesticides application on tobacco crop with cancer incidence in the tobacco growing districts of NWFP- Pakistan.     

中国癌症与土壤环境中溴元素的关系

利用土壤环境中溴元素资源 76 7个数据和癌症死亡调查资料 7870 80例 ,研究了癌症死亡率与人群生存区土壤环境中溴元素的关系。结果表明 ,食道癌、肝癌、宫颈癌、鼻咽癌死亡率与溴元素有相关性 ,等级相关系数分别为- 0 4 333(P <0 0 1) ,0 4 837(P <0 0 0 5 ) ,- 0 4 0 4 7(P <0 0 2 5 ) ,0 5 2 0 7(P <0 0 0 2 5 )。     

中国癌症与土壤环境中钒元素的关系

利用土壤环境中钒元素资料 32 335个数据和癌症死亡调查资料 7870 80例 ,研究了癌症死亡率与人群生存区土壤环境中钒元素的关系。结果表明 ,仅胃癌、大肠癌死亡率与钒元素有相关性 ,等级相关系数分别为 - 0 476 9(P <0 0 0 5) ,- 0 31 79(P <0 0 5)。     

中国癌症与土壤环境中碘元素的关系

利用土壤环境中碘元素资料769个数据,癌症死亡调查资料787 080例,研究了胃癌、食管癌、肝癌、宫颈癌、肺癌、大肠癌、白血病、鼻咽癌、乳腺癌死亡率与人群生存区土壤环境中碘元素的关系.结果表明,胃癌、食管癌、肝癌、宫颈癌、鼻咽癌死亡率与碘元素有相关性.     

硅灰石在氨基酸水溶液中的电化学及溶解作用研究

在模拟人体温度３７℃条件下,进行硅灰石纤维粉尘与氨基酸作用的实验研究,测定在７２ｈ内溶解过程中ｐＨ值和电导率（к）的变化。结果表明,硅灰石纤维矿物在氨基酸中发生的溶解作用与酸的性质有关,酸性氨基酸对矿物的溶解能力最强,中性次之,碱性最弱。硅灰石在酸性和碱性氨基酸中８ｈ左右出现溶解饱和点,而在中性氨基酸中７２ｈ内无溶解饱和点,溶解度具有随时间的增加而呈线性增长的趋势。硅灰石的这种溶解特征表明,硅灰石     

中国癌症与土壤环境中Er元素的关系

利用土壤环境中铒元素资料７６６个数据,癌死亡调查资料７８７ ０８０例,研究了胃癌 食管癌、肝癌、宫颈癌、肺癌、大肠癌、白血病、鼻咽癌、乳腺癌死亡率与人群生存区土壤环境中铒元素的关系。结果表明,仅癌死亡率与铒元素有相关性,等级相关系数为－０．５０６９（Ｐ〈０．００５）。     

中国癌症与土壤环境中硼元素的关系

研究了各种癌症死亡率与人群生存区土壤环境中硼元素的关系,结果表明,仅宫颈癌死亡率与硼元素有相关性,等级相关系数为－０．３１２５（Ｐ〈０．０５）。     

长江大学教授下跪请求关停污染企业

4年间,楚航公司排放的有毒有害气体、粉尘、噪音整天弥漫于校园中,学校学生的咽喉炎等小病屡见不鲜,许多师生出现头痛、白血病、咽喉炎等慢性疾病,甚至有不少老师罹患癌症。     

北京出现“癌症村”？

沦为“癌症村”以来,村里比较富裕的村民都搬走了。北京市顺义区木林镇后王各庄村村民孔几国告诉《地球》记者,该村人口有1000多人,近几年得癌症的人越来越多。