1·An urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won't have much of a chance to contaminate it.
一个有关食物的都市神话声称，如果食物只在地上停留几秒钟，灰尘和细菌就不太有可能污染它。
2·This heavy metal, which can also contaminate water and soil, can interfere with nearly every aspect of fetal development, causing brain and kidney damage, according to the CCHE.
铅这种重金属，也会污染水和土壤，而且，根据CCHE，铅几乎可以干扰到胎儿发育的各个方面，造成脑和肾的损伤。
3·Paraffin is a known carcinogen, and hydrogen peroxide can harm the digestive system. Chopsticks irresponsibly disposed of can contaminate water and soil quality.
石蜡是一种已知的致癌物，而过氧化氢则对消化系统有害。随意丢弃木筷则可能污染水和土壤质量。
4·A nuclear blast is an explosion with intense light and heat, a damaging pressure wave, and widespread radioactive material that can contaminate the air, water, and ground surfaces for miles around.
核爆炸会释放出高能量的光和热，破坏力巨大的压力波，而且四处飘散的放射性物质会污染数周围英里内的空气，水，和地表。
5·The lead poses little threat if undisturbed but "replacing old windows or drilling into walls to blow in insulation, for example, can contaminate the house with lead dust," CELA said.
在没有施加外力影响的情况下，铅的危害并不大。 但是CELA解释说：“比如，在更新旧的窗户或者钻进墙壁中嵌入绝缘材料的时候，可能使房间受到铅尘的污染。”