英語検定ライティングで１級（第67回）

タイトル「水道水は人体に絶対に悪いのか？」

Yes, this suggestion is supportable.
This reason makes the opinion acceptable.

水道水の中に発がん物質が含まれているので、複数の県では検査が実施されているというニュースがあった。水道水を使って料理をする人にはゾッとする内容だ。
A news said that a few prefectures examined the quality of water supply because poisonous chemical substances were contained in tap water several days ago.
This explanation seemed frightening to those who cook with such water at home or at a restaurant.

水道水にはさまざまな化学物質が含まれている。それは有害な細菌を取り除くためだ。だから体内に入っても、甚大な健康被害を被ることはないと信じてきた。
There are various chemicals in water supply, which could eliminate several kinds of poisonous bacteria from it.
As a result, we didn’t doubt that we would fail to suffer from serious and critical diseases even when we take tap water into our body.
We actively drank such water to meet thirst, instead.

その化学物質の中にはトリハロメタンと呼ばれる発がん物質も含まれている。濃度の高い塩素を使っての殺菌の際に生成される。だが対処は家庭でも簡単にできる。
Cancer-related substances called “trihalomethane” are contained in such chemicals, which are generated when they kill germ with high concentration of chlorine.
But we can cope with “trihalomethane” easily at home.

そんなに手間はかからない。数分間ほど沸騰させるだけで良い。そうすれば除去できる。となると水道水をそのまま冷蔵庫に入れて冷やすのは避けるべきだ。
It isn’t troublesome to do so, and we have only to boil tap water in a kettle for several minutes, which eliminates something poisonous completely.
Considering this, we shouldn’t hold water supply in the fridge without boiling it, instead we must avoid this.

ところで最近話題の化学物質は、かなりの健康被害を引き起こすことが証明されている。免疫機能が低下して、感染症にかかりやすくなるとのことだ。
The poisonous substances frequently broadcasted on TV  in recent days are demonstrated to cause us to suffer from challenging diseases because they deprive us of immune function, which might make us vulnerable to an infectious illness.

水は人体を構成する基本的な物質なので摂取しないわけにはいかない。水道水が危険なのなら、コストはかかるがミネラルウオーターを購入するのがお勧めだろう。
We cannot spend a day without drinking water because it is basic and indispensable substance to compose our physical body.
We recommend that you should purchase mineral water online when you want to avoid taking even a little poisonous chemicals into your body although it might be a little expensive.

This reason makes the question titled above favorable.