- "The World Health Organization considers anything above 25 to be unsafe." (CNN, 2017)
- "Breathing in air with a PM2.5 content of between 950 to 1,000 is considered roughly equivalent to smoking 44 cigarettes a day, according to the independent Berkeley Earth science research group." (CNN, 2017)
Using Berkeley's formula: 44 cig/950 PM2.5 = x cig/202 PM2.5. Therefore, an AQI reading of 202 PM 2.5 is equivalent to smoking 9.36 cigarettes per day (65.5 cigarettes per week or 3,405.51 cigarettes per year).
Information on SMOKING:
- "Even Smoking One Cigarette a Day Can Lead to Early Death" (Time, 2016)
- "What Are the Risk Factors for Lung Cancer?" (CDC, 2017)
More on AIR POLLUTION:
- "Smog linked to third of deaths in China, study finds" (SCMP, 2016)
- "China wages war on pollution" (The Straits Times, 2017)
- "Pollution Kills More People Than Anything Else"