That would reduce the amount of ozone over the tropics and increase it over the poles - an effect seen in the simulation.

这就减少了热带地区上空的臭氧量，而增加了极地上空的臭氧量- - - - -模拟显示的结果。

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In the lower atmosphere the oxides of nitrogen add to an increase in ozone and small particles, which can cause respiratory ailments.

在低层大气里，氮氧化物使臭氧和可以引致呼吸道疾病的微粒增加。

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Apart from heatwaves, higher temperatures can increase ground-level ozone and hasten the onset of the pollen season, contributing to asthma attacks.

除了热浪，气温升高可增加地面的臭氧并使花粉季节提前开始，从而造成哮喘发作。

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Ozone from air pollutants may increase the risk of preeclampsia, a potentially dangerous pregnancy condition.

WSJ: What's News: World-Wide

The findings suggested that the plants' NOx emissions could result in a 35% increase in the number of days when ozone levels exceeded the upper threshold set by the US Environment Protection Agency.

BBC: Invasive plant 'increases ozone pollution'

He acknowledged that any soil used to grow nitrogen-fixing plants or were fertilised for agricultural reasons would result in an increase in gases involved in the formation of ozone.

BBC: Invasive plant 'increases ozone pollution'