Question

Pollution level in Bejing _____by 18 percent during the course of olympics

Answer 1

Explanation:

The Beijing Olympics will begin in August 2008 and athletes will face an unpredictable challenge. Based on present data, Beijing is one of the most polluted megacities in the world; the air concentrations of carbon monoxide (CO), ozone, nitrogen oxides (NO and NO2), sulphur dioxide (SO2) and particulate matter approach or exceed the current limits established by U. S. Environmental Protection Agency (EPA). Although the athletes who will be competing in Beijing are physiologically very different to the participants in most published studies, and it is therefore difficult to predict individual responses, there is little doubt that the presence of these air pollutants might be detrimental to athletic performance due to the marked increase (up to 20-fold) in ventilatory rate and concomitant nasal and oral breathing. Moreover, mouth breathing often bypasses the noise during strenuous exercise, increasing the deleterious effects of pollutants on health and athletic performance. Although limited, each decrement in athletic performance would have a potentially deleterious impact on top-class athletes competing in the next Olympics in China. Several Olympic records are regularly broken during the Olympics.

Answer 2

We are required to complete the sentence that is given in the question. We shall use the word reduced to complete the sentence.

• Pollution levels in Bejing reduced by 18 percent during the course of the Olympics.

• This was because China brought into effect high levels of pollution control measures.
• These measures included the measures where vehicles were kept off the roads, and deisel emissions were controlled.
• Air quality was also controlled through various measures.
• This was done to ensure a cleaner quality of air for the athletes participating in the Olympics.

PROJECT CODE: #SPJ2