This is the 7403rd most frequent Japanese word.
低減
"Reduction" or "decrease."
In this sentence, '低減' (teigen) is used as a noun referring to the process of lowering or reducing something, in this case, costs.
この手続きはコストの低減をもたらします。
This procedure brings about a reduction in costs.
Here, '低減する' functions as a verb implying the action of reducing, specifically the environmental burden.
環境負荷を低減するため、省エネルギー技術を活用しています。
Energy-saving technologies are employed to reduce the environmental impact.
In this sentence, 'ノイズ低減' specifies the subject matter of a reduction, specifically referring to noise, showcasing its usage as part of a compound noun.