Mayor José Luis Martinez Almeida made opposition to the zone a centrepiece of his election campaign, despite its success in improving air quality.

尽管该地区在改善空气质量方面取得良好效果，但市长路易斯·马丁内斯·阿尔梅达还是反对将该地区作为其竞选活动的重点。

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"All honorees commit to improving air quality," said Dr. Lucica.

博士卢卡奇表示：“所有获奖者都致力于改善空气质量。”

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Three approaches can be used for improving air quality.

有三种方法可以改善空气质量。

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And that in turn leads to additional emissions of harmful pollutants and our area is very concerned about improving air quality as one of the key ways to make our communities even better places to live and work."

VOA: standard.2010.07.26

Electric vehicles are seen as at least part of the solution for improving air quality.

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The hospitality industry is opposed to a complete ban in the north, saying it is already improving air quality in pubs and bars.

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The majority of the pollution is caused by vehicles on the road and experts say reducing traffic in the cities is the best way of improving air quality.

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