The re-burning of coal seams still occurs in coal fire areas after firefighting projects. A large
amount of spontaneous combustion gas products is released from the surface fissure, which …

Abstract The Wuda Coalfield, Inner Mongolia suffers from serious coal fires for more than
half a century. Fire-extinguishing projects have been carried out to suppress the coal fires …

Highlights•Approximate two thirds of sites were moderately or considerably polluted by
Hg.•Significantly higher topsoil Hg levels indicate serious pollution in recent years.•Polluted …

Concentrations of mercury and other heavy metals were measured in soils surrounding the
Wuda Coalfield, Inner Mongolia where underground coal fires are regarded as an important …

In the early stages of a coalfield fire, CO2 emissions are relatively low, and it is challenging
to detect CO2 concentrations in the soil surface due to the impact of surface temperature and …

Mercury, a highly toxic environmental pollutant with a global circulation, must be controlled
worldwide. Taking the Wuda underground coal fires, one of the most severe coal fire …

Emissions from underground coal fires extend the already well‐known adverse health
impacts of coal extraction and combustion. The extraction, storage, transportation, and …

Mercury is a toxic, persistent, and mobile contaminant. Coal spontaneous combustion are
widely distributed in the world and releases a great deal of Hg. Identifying the burning coal …

本文采用多接收电感耦合等离子体质谱仪(MC-ICPMS) 分析了乌达煤田9 号火区的不同煤层煤,
落尘和地表土汞同位素比值, 以探讨煤火区地表汞的可能来源煤层. 结果表明, 煤, 落尘和地表土δ …

Underground coal fires are considered an ecological disaster. While underground coal fires
are prevalent in coal-producing areas throughout the world, they are most problematic in …