Studies have long shown that children who live near busy roadways have higher rates of hay fever, allergic sensitization, asthmatic bronchitis and eczema, but the reasons have not been clear.
![]() |
Source: NIH |
A study to be presented today at an American Chemical Society meeting in Denver points to one possible pathway – it shows how pollen can be altered and made more harmful by two of the most common traffic related pollutants – nitrogen dioxide and ozone.