Данные о качестве воздуха предоставлены: the Sichuan Province Environmental Protection Agency (四川省环保重点城市环境空气质量实时监测结果) (schj.gov.cn) and the Sichuan Province Environmental Protection Agency (四川省环保重点城市环境空气质量实时监测结果) (sthjt.sc.gov.cn) and the Weather Underground (wunderground.com) and the Sichuan Province Environmental Protection Agency (四川省环保重点城市环境空气质量实时监测结果) (221.237.179.45:5100)