We have a strange smell in our neighborhood. When it first started last summer we didn't think much of it. It comes and goes. Sometimes it last for hours and other times less than half hour. It started again a few days ago. It seems stronger than usual. The only way to describe it is a sweet chemical smell. my mom lives a block away and can also smell it at her house. now that the smell is getting stronger it's making us sick if we go outside. It will make your eyes water and your chest burn......who can we call for help to find out where and what it is without drawing to much attenion to ourselves? They would need to be able to come out in the evening always around 9pm, and it will only last for about another month or 2.