Trace elements in coal: environmental and health significance

Area of Science:

• Environmental Science
• Geochemistry
• Public Health

Background:

• Coal combustion and natural coal deposits release trace elements with adverse health effects.
• Arsenic emissions from coal power plants and domestic coal use cause widespread health problems, including arsenism and fluorosis.
• Millions in developing countries are affected by health issues linked to coal burning.

Purpose of the Study:

• To highlight the health risks associated with trace elements in coal.
• To emphasize the importance of coal quality knowledge in mitigating health problems.
• To explore how understanding element occurrence and distribution can inform risk management.

Main Methods:

• Analysis of trace element concentrations and distributions in coal.
• Investigation of mineralogical and textural relationships of elements within coal.
• Predictive modeling of trace element behavior during coal processing and environmental interactions.

Main Results:

• Trace elements like arsenic pose significant health risks through coal combustion and proximity to coal sources.
• Domestic coal combustion is a major source of widespread health issues such as fluorosis and arsenism.
• Knowledge of coal's trace element content can guide avoidance of hazardous areas within deposits.

Conclusions:

• Improved understanding of coal quality, including trace element concentrations and occurrence, is crucial for public health.
• Characterizing trace elements in coal aids in predicting their environmental fate and mitigating health impacts.
• Informed coal resource management can reduce health risks associated with coal combustion and exposure.