From Scientific American! 抗屑洗髮精的除菌成分污染地球水源,使用前請三思!

Dandruff Shampoo Could Mess Up Waterways

Toxicity testing毒物測試 on shampoo that fights flakes頭皮屑 reveals that it's bad for plants and animals once it's in wastewater廢水.
David Biello reports

Every time you wash your hair, a lot of shampoo goes down the drain隨著水管排出去. And if you're bothered by tiny white flakes頭皮屑, odds are很有可能 you use a shampoo that deals with dandruff.
Such medicinal shampoos含藥性洗髮精 often include a fungicide殺菌劑. A fair amount of fungicide thus ends up at the local wastewater treatment plant廢水處理廠. Those industrial facilities remove a lot of stinky髒臭 stuff. But they mostly fail to grab the drugs in soaps, shampoos, toothpastes, perfumes, sunscreen and other skincare products that our daily habits add to wastewater.
Now a study has detected fungicides from anti-dandruff shampoos in the water. And even at concentrations as low as 0.5 micrograms毫克 per liter一公升 of H2O such fungicides can hurt many organisms生物, from tiny algae to big plants and fish. The study is in the journal Environmental Toxicology and Chemistry.
Exposure to the fungicide is chronic慢性的: It gets repeated day after day after day. The algae just die. But bigger plants suffer retarded growth成長緩慢. And animals like fish are affected, too, since they share similar cellular mechanisms細胞機制 with their distant relatives遠親. We might want to start coming up with想出 ways to get our dandruff shampoo—and other personal care products個人衛生用品—out of the drink.
—David Biello



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