Sentences with phrase «elevated ozone levels»
But this study suggests that repeated exposures to elevated ozone levels over time have cumulative effects on respiratory health.»
https://www.sciencedaily.com/
Louisa Emmons, a visiting scientist at the National Center for Atmospheric Research in Boulder, Colo., and her colleagues connected a region of elevated ozone levels in the eastern Indian Ocean with lightning produced in Africa.
IMAGES BELOW show a plume of elevated ozone levels stretching from Africa to Australia.
Not exact matches
They found that elevated CO2 of 800 ppm, increased pollen production per flower by 53 percent while the different ozone levels had no effect on the amount of pollen produced.
«Enhanced ozone production in urban areas is a concern because of the population size potentially impacted and because air pollution levels could be already elevated due to local and mobile sources,» explains Larsen.
Higher levels of extinction (41 — 60 %) had effects rivalling those of ozone, acidification, elevated CO2 and nutrient pollution.
High ozone levels downstream of pollution sources can cause elevated OH radical concentrations, which in turn increases the concentration of condensable species and thus the potential for nucleation.