Riau Province is one of the prone areas of forest and land fires in Indonesia. Fires began to grow since the 1980s as deforestation and the clearing of palm oil plantations occured. The peak of a major fire was happened before the study was taken from 2014 to 2015 and caused a smoke haze for months. https://www.roneverhart.com/FRESNO-Domed-Polished-Finish-Tungsten-Wedding-Band-20mm/