Representatives at the Metropolitan Transportation Authority in New York have suggested the switch to lung-safe chemicals when cleaning vehicles and stations. According to a Queens Gazette article, commuters are being urged to use mass transit because of an ozone alert, and are then driven into "steamy underground subways systems that are cleaned with chemicals that aggravate their respiratory systems."

New York officials comment that asthma has become the most prevalent work-related lung disease in American, and is also one of the fastest-growing diseases in the country among low-income and minority people, who use public transportation the most. According to the article, the toxic fumes of harsh cleaning agents trigger asthma attacks in commuters.

According to the American Lung Association, ammonia, chlorine, sulfur dioxide and hydrochloric acid are among common cleaning solvents and chemical irritants that have been proven to be asthma triggers. If the Metropolitan Transportation Authority decides to substitute more health-favoring cleaning products, it will be another step to improve health and safety for New York City transit customers.

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