Chemical spills are types of pollution that is believed to
have the most impact in society. This event poisons the environment and kills
organisms instantaneously or sometimes at a slow rate in a given
geographic location on Earth. Irresponsible human activity is the cause of these spills and laws have already
been passed for its proper regulation.
Jaun more than likely has asthma.Asthma is a condition that makes your airways narrow and swell produce too much mucus making your lungs very sensitive and can make it very hard to breathe in certain conditions
As we can see we already have the Symptoms,and,triggers that Juan suffers from.
hope this helps :D