Quím. Nova vol.29 número2

the extremely high ozone levels (up to an hourly value of 286 ppbv), while the pollution observed at the suburban sites of Shanghai, Guangzhou and Lanzhou was character- ized by

In one event of 25 March, 1986, the mean total ozone value for six days before the REP is bigger than that for six days after, but this a case of an extremely high ozone increase

4 it is evident that variability in mesospheric ozone also generally occurs around SSW events, when an increased ozone abundance is clearly discernible at the altitude of the

Being the host city of the 29th Summer Olympic Games, the Beijing government setup rather aggressive action plans to reduce the emissions of air pollutants in Beijing and

Due to the reduced photolysis rates in the troposphere associated with the strato- sphere ozone recovery, the global tropospheric ozone burden is calculated to

(This quantity is calculated by multiplying the total number of ozone molecules in the cell by the fraction of ozone lost in the first 10 s (i.e. roughly 0.5) and by assuming that

Whereas a mean daytime net ozone production rate (NOP) of 1.06 ppb v /hr occurred throughout the campaign, the reduced RO x and NO x mixing ratios in the Saharan dust plume

However, physicians should not forget that in 07/09/2009 the Federal Council of Medicine (CFM), answering a re- quest of the Brazilian Ozone Therapy Association, has considered