Noun
こくえん
くろけむり
黒煙のせいで、熱気がこもって息苦しかった。
The air was hot and stuffy from the black smoke.
あなただけがあの黒煙をすいこんだわけじゃないのよ。
You're not the only person who inhaled the black smoke.
私はバスの運転手になるのを楽しみにしていたんですが、息子から、「バスが黒煙をまき散らしていることを知りながら、それでもバスの運転手を続けたいなら、排気管からの黒煙を少し吸ってみるといい」と言われました。
I was looking forward to being a bus driver but then my son told me buses spread black smoke, and that if I still want to be a bus driver, then I should try inhaling some of that black smoke that comes out of my exhaust pipe.
Black smoke is black smoke. It's also something you should avoid if you can.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.