What’s some good vocabulary for a GCSE English Language article on life in cities?

A pall of noxious smog hangs over our cities. Particulates float in the air, waiting for an opportunity to attack. They burrow deep into our lungs and lurk, unseen, toxic seeds that blossom years later into cancer, heart disease and death. Life expectancy plummets as smog levels increase; yet our leaders fiddle while Rome burns.

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