Most people think our breathable air is getting cleaner, and it is in some areas. We have fewer days of extremely bad air, thanks to clean air acts. But steady, day-to-day exposure to pollutants, especially ozone, is becoming more prevalent. On bad days, some plants are getting ozone at concentrations of 60 to 80 parts per billion.
More Quotes from William Manning:
The hardest part (of the research) is that it's done outside under natural conditions that are changing all the time,William Manning
The ultimate goal is to use plants to detect periods of ozone exposure that may also affect human health.
William Manning
Readers Who Like This Quotation Also Like:
Based on Keywords: breathable, concentrations, pollutantsWe oppose the reactionary policies of the U.S. government but we do not oppose the American people. We want to have many good friends in the United States.
Kim Jong Il
My parents, and especially my mother, encouraged by the director of the local school which I was attending, wanted in spite of everything to send me to a National School of Arts and Crafts so that I could later become an engineer.
Leon Jouhaux
Fantasy for me as a kid was real, and I had a fantasy about what life was, whether it was sort of wicked and dire, or wholly normal, or whatever. Anything really close to home is not, it seems to me, what a good book should be about.
Diana Wynne Jones