マイクロプラスチック　Cosmetics industry　1: 英語の勉強

2020年01月06日

マイクロプラスチック　Cosmetics industry　1

Some companies have replaced natural exfoliating ingredients with microplastics, usually in the form of "microbeads" or "micro-exfoliates". These products are typically composed of polyethylene, a common component of plastics, but they can also be manufactured from polypropylene, polyethylene terephthalate, and nylon.They are often found in face washes, hand soaps, and other personal care products; the beads are usually washed into the sewage system immediately after use. Their small size prevents them from fully being retained by preliminary treatment screens at wastewater plants, thereby allowing some to enter rivers and oceans. In fact, wastewater treatment plants only remove an average of 95–99.9% of microbeads because of their small design . This leaves an average of 0-7 microbeads per litre being discharged. Considering that one treatment plant discharges 160 trillion liters of water per day, around 8 trillion microbeads are released into waterways every day. This number doesn't account for the sewage sludge that is reused as fertilizer after the waste water treatment that has been known to still contain these microbeads.

https://en.wikipedia.org/wiki/Microplastics#Cosmetics_industry

Some companies have replaced natural exfoliating ingredients with microplastics, usually in the form of "microbeads" or "micro-exfoliates".
一部の企業は、通常「マイクロビーズ」または「マイクロエクスフォリエイト」の形の天然の剥離成分をマイクロプラスチックに置き換えています。

These products are typically composed of polyethylene, a common component of plastics, but they can also be manufactured from polypropylene, polyethylene terephthalate, and nylon.
これらの製品は通常、プラスチックの一般的なコンポーネントであるポリエチレンで構成されていますが、ポリプロピレン、ポリエチレンテレフタレート、ナイロンから製造することもできます。

They are often found in face washes, hand soaps, and other personal care products; the beads are usually washed into the sewage system immediately after use.
洗顔、ハンドソープ、その他のパーソナルケア製品によく見られます。
ビーズは通常、使用後すぐに下水システムに洗い流されます。

Their small size prevents them from fully being retained by preliminary treatment screens at wastewater plants, thereby allowing some to enter rivers and oceans.
それらの小さなサイズは、それらが廃水プラントでの予備処理スクリーンによって完全に保持されるのを防ぎ、それによって一部が川や海洋に入ることを可能にします。

In fact, wastewater treatment plants only remove an average of 95–99.9% of microbeads because of their small design .
実際、廃水処理プラントでは、設計が小さいため、平均95～99.9％のマイクロビーズしか除去されません。

This leaves an average of 0-7 microbeads per litre being discharged. Considering that one treatment plant discharges 160 trillion liters of water per day, around 8 trillion microbeads are released into waterways every day.
これにより、1リットルあたり平均0～7個のマイクロビーズが排出されます。
1つの処理プラントが1日あたり160兆リットルの水を排出すると考えると、毎日約8兆個のマイクロビーズが水路に放出されます。

This number doesn't account for the sewage sludge that is reused as fertilizer after the waste water treatment that has been known to still contain these microbeads.
この数値は、廃水処理後に肥料として再利用される下水汚泥を考慮しておらず、これらの汚泥にはこれらのマイクロビーズがまだ含まれていることが知られています。