The phrase "exposure to harmful chemicals" refers to being in contact with or coming into close proximity with substances that can cause damage, injury or discomfort. Full definition
If possible, buy organic greens to prevent exposure to harmful chemicals from pesticides. (eoah.com)
And two, to minimize exposure to harmful chemicals, don't boil plastic baby bottles, heat them in the microwave, or wash them in the dishwasher. (babycenter.com)
Other people have increased exposure to harmful chemicals whether through their homes or jobs. (drlaurell.com)