名词
中文翻译：背景污染
同义词：
['environmental pollution', 'environmental contamination']
例句：
-
1. The city's air quality has significantly improved since the implementation of stricter emission standards.
自从实施更严格的排放标准以来，该城市的空气质量已显著改善。
-
2. The government has launched a campaign to raise awareness about the dangers of background pollution.
政府已经发起了一场运动，以提高人们对背景污染危险的认识。
-
3. The study found that exposure to background pollution can have negative effects on human health.
研究发现，暴露于背景污染可能会对人类健康产生负面影响。