在燃煤過程中，排放會引起空氣質(zhì)量的擔(dān)憂，但技術(shù)存在以應(yīng)對這一挑戰(zhàn)。世界煤炭協(xié)會（WCA）支持在現(xiàn)代燃煤電站中使用這些技術(shù)來減少排放。

During the burning of coal, emissions can occur that cause concerns about air quality, but technologies exist to address that challenge. The World Coal Association (WCA) supports the use of these technologies in modern coal-fired power stations to reduce emissions.