瓶装水污染物
前5名水污染物
在美国,Geathouse和Osborne学习4200名成人,在35岁至74岁的不同地理区域。他们的发现?再次,硬水区的心脏病死亡率较少,而不是软水域。橡树岭国家实验室的一份报告发现,硬水中的钙和镁降低了心脏病发作和中风的风险。本研究比较了1,400名威斯康星州伴侣农民的健康记录井水来自自己的农场。喝着软水的农民患有心脏病,而喝过硬水的农民在大多数情况下都没有问题。有时,最好的实验是那些本质已经默默地进行了多年。看到一些最透露的水资源研究是比较两个邻近的城镇,其中一个城镇改变了它的硬水以产生更柔软的水。 这项行动的影响是什么?较高的心脏病死亡率。我们在英国练习和格里姆斯比中看到这一点。两个城镇都喝了44.4毫克/升硬度的相同水,心脏病死亡率相同。剥落将水软化至100毫克/升硬度,并且在几年内发生了醒目的心血管死亡的增加。而在严峻的情况下,速度几乎与它一样。此模式亦已在意大利克雷瓦尔群岛和蒙特吉奥戈奥和意大利阿布鲁佐地区报道。 The National Academy of Sciences concluded, "An optimum conditioning of drinking water could reduce the amount of cardiovascular disease mortality by as much as 15% in the U.S. When looking at the research there is a definite relationship between water hardness and heart disease mortality. We should try to drink water that has approximately 170 mg/L of hardness; the level found Ideal In Great Britain. Second, there is a definite relationship with TDS and heart disease mortality. Higher levels of TDS results in less heart disease. Proper levels of hardness and TDS are two of the beneficial properties in drinking water constituting a healthy drinking water.
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