于是在3年前，当阿勒格尼能源公司决定安装洗涤塔以清洁工厂的排放废弃时，环保主义者们都喜出望外。

So three years ago, when Allegheny Energy decided to install scrubbers to clean the plant's air emissions, environmentalists were overjoyed.

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包括纽约和新泽西的五个洲，都将这个工厂的主人，阿勒格尼能源公司告上法庭，称由该工厂产生的空气污染是造成呼吸道疾病和酸雨的主要原因。

Five states - including New York and New Jersey - sued the plant's owner, Allegheny Energy, claiming the air pollution was causing respiratory diseases and acid rain.

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