Data from 33 PCD monitoring stations in Bangkok showed many of the capital’s districts affected by unhealthy air quality levels of 40-78 micrograms per cubic metre, well above the safety level of 50 micrograms per cubic metre of air. Among the affected districts are Bangkhuntien, Pathumwan, Thonburi, Wang Thonglang, Din Daeng, Samphanthawong, Phya Thai, Bang Rak, Sathorn, Bang Sue and Laksi.