| Title | Ammonia emissions rise in UK, as other air pollutant levels fall | 
| Publication Type | Web Article | 
| Year of Publication | 2018 | 
| Authors | Harvey F | 
| Publisher | The Guardian | 
| City | London | 
| URL | https://www.theguardian.com/environment/2018/feb/15/ammonia-emissions-rise-air-pollutants-fall-new-government-statistics | 
