1. Jasarevic T, Thomas G, Osseiran N (2014) 7 million premature deaths annually linked to air pollution. WHO
2. Morawska L, Zhang J (2002) Combustion sources of particles: health relevance and source signatures. Chemosphere 49:1045–1058
3. Siegmann K (2000) Soot formation in flames. J Aero Sci 31:S217–S218
4. MEP (2012) Ambient air quality standards, vol GB 3095–2012. Ministry of Environmental Protection, P.R. China
5. CPCB (2009) National ambient quality standards, vol B-29016/20/90/PCI-I. Central Pollution Control Board, India