Abstract
The emission of carbon compounds (in the form of soot) to the atmosphere has a significant impact on the environment and human health. Air pollution with combustion products, having a unique combination of physical and chemical properties, is an important component of very fine suspended dust, which is emitted from various sources related to combustion processes. The carbon compounds in aerosol form and deposited in the substrate are found all over the Earth. The paper presents results of comparative research on the content of 16 polycyclic aromatic hydrocarbons (PAH) in soot samples obtained as a result of combustion of solid fuels such as hard coal with granulation above 60 mm, coal with a grain size of 25–80 mm, coal with a grain size of 8–25 mm, pellets and dry wood. On the basis of the conducted tests, it was found that the soot obtained in the combustion of coal in different granulation contains more cytotoxic PAH in comparison to the combustion of wood pellets or dry firewood.
Highlights
Emission of carbon compounds in the form of soot to the atmosphere has a significant impact on the environment and human health
The studied hydrocarbons were divided into three groups: ΣLMW; ΣHMW (five- and six-ring compounds: fluoranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, indeno(1,2,3-c,d)pyrene, dibenz(a,h)anthracene and benzo(g,h,i)perylene) and the total of 16 aromatic hydrocarbons—Σ16PAH
Characterized by higher durability in the environment compared to hydrocarbons with lower masses. This property is related to their lower solubility in water as well as the volatility described by Henry’s constant. Both values decrease with the increase of molecular mass, while their value depends on the intensity of polycyclic aromatic hydrocarbons (PAH) elimination through biochemical changes and evaporation [36]
Summary
Emission of carbon compounds in the form of soot to the atmosphere has a significant impact on the environment and human health. Other sources of soot in the environment include emission of pollutants from vehicles and vessels with diesel engines, production of energy and heat in the power industry, production of heat in industry, forest fires and biomass burning in agriculture [1,4,5,6,7,8]. This waste consists of highly toxic, carcinogenic or mutagenic compounds, including amorphous carbon, graphite-like connections, fullerenes, ashes, and metal compounds, including heavy metals and metalloids. Hydrocarbons, in particular aliphatic and aromatic hydrocarbons, including large amounts of polycyclic aromatic hydrocarbons (PAH), constitute a large proportion of the soot [4,5]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
