Concerned about the possible damage to the atmosphere's ozone layer, laws in many countries now prohibit the use of fluorocarbons as propellants in acrosol cans错在哪里?
谢谢
这个句子的改法似乎是
Because of concern about possible damage to the the atmosphere's ozone layer, laws in many countries now prohibit the use of fluorocarbons as propellants in acrosol cans.
这里是不是吧concern当名词使了。。。这样改不是改变了原文的意思了吗?