They also concluded the daughters of mothers with higher levels of exposure were diagnosed with more advanced breast cancer. (treehugger.com)
We also now know that very low levels of exposure — and exposure at particular stages of life — can have profound and lasting health effects. (treehugger.com)
Like many toxins, researchers say there's no safe level of exposure to air pollution and pregnancy provides an ideal time to consider the hazards in your surroundings. (health.com)