Particulate Matter-Induced Acute Coronary Syndrome: MicroRNAs as Microregulators for Inflammatory Factors

Table 1

Summary of particulate matter (PM) and its composition sources.

Particulate matter (PM)	Main source of emission	Reference
PM2.5	Traffic emissions (brake and vehicle exhaust); Industrial emissions released from power plant and oil refinery; Secondary organic and inorganic aerosol	[11] ([104]; [105]; [14])
PM10	Road dust and tire wear; Construction activities; Wildfires and windblown dust	([106]; [107])
Ultrafine particles (UFP)	Tailpipe emissions from vehicle exhaust, diesel combustion, and solid biomass burning	([106]; [11]; [18]; [108]; [88])
Black carbon (BC)	Combustion process (vehicle exhaust emissions and cookstoves)	([109]; [106])
Polycyclic aromatic hydrocarbons (PAHs)	Incomplete combustion of fossil fuels, natural combustion (forest fires and volcanic eruption), anthropogenic cause (wood, coal burning, vehicle exhaust emissions, heat and power generation)	([110]; [16]; [111]; [17])