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Wood ash from a campfire. Wood ash is the powdery residue remaining after the combustion of wood, such as burning wood in a fireplace, bonfire, or an industrial power plant.It is largely composed of calcium compounds, along with other non-combustible trace elements present in the wood, and has been used for many purposes throughout history.
The environmental impact of burning wood fuel is debatable. Several cities have moved towards setting standards of use and/or bans of wood burning fireplaces. For example, the city of Montréal, Québec passed a resolution to ban wood fireplace installation in new construction.
Research conducted about biomass burning in 2015, estimated that 38% of European total particulate pollution emissions are composed of domestic wood burning. [42] Wood smoke (for example from wildfires or wood ovens) can cause lung damage, [43] [44] artery damage and DNA damage [45] leading to cancer, [46] [47] other respiratory and lung ...
A recent study of 163 households in two rural Chinese counties reported geometric mean indoor PM 2.5 concentrations of 276 μg/m 3 (combinations of different plant materials, including wood, tobacco stems, and corncobs), 327 μg/m 3 (wood), 144 μg/m 3 (smoky coal), and 96 μg/m 3 (smokeless coal) for homes using a variety of different fuel ...
The term creosote has a broad range of definitions depending on the origin of the coal tar oil and end-use of the material. With respect to wood preservatives, the United States Environmental Protection Agency (EPA) considers the term creosote to mean a pesticide for use as a wood preservative meeting the American Wood Protection Association (AWPA) Standards P1/P13 and P2. [6]
A common feature of the definitions is that soot is composed largely of carbon based particles resulting from the incomplete burning of hydrocarbons or organic fuel such as wood. Some note that soot may be formed by other high temperature processes, not just by burning. [5] Soot typically takes an aerosol form when first created. It tends to ...
Today, burning of wood is the largest use of energy derived from a solid fuel biomass. Wood fuel can be used for cooking and heating, and occasionally for fueling steam engines and steam turbines that generate electricity. Wood may be used indoors in a furnace, stove, or fireplace, or outdoors in a furnace, campfire, or bonfire.
The process is used heavily in the chemical industry, for example, to produce ethylene, many forms of carbon, and other chemicals from petroleum, coal, and even wood, or to produce coke from coal. It is used also in the conversion of natural gas (primarily methane ) into hydrogen gas and solid carbon char, recently introduced on an industrial ...