Dust created by quarries is considered respirable crystalline silica, a type of particulate matter. Studies have established a strong link between these particles and the following health effects:

• ·       Silicosis
• ·       Pulmonary disease
• ·       Reduction in lung function
• ·       Leukemia
• ·       Atherosclerosis and heart disease
• ·       Dysrhythmia
• ·       Heart failure and cardiac arrest
• ·       Stroke and cognitive disorders³
• ·       Fertility problems
• ·       Miscarriage
• ·       Premature birth
• ·       Low birth weight

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The science is extremely concerning and there is much research on the issue. On air toxicity, the Environmental Working Group, a US-based body specialising in research and advocacy, has stated that The danger of airborne silica is especially acute for children…Silica air pollution has become a danger for residents near mining and processing operations. Children, older adults and others with existing disease are especially at risk.

• Carcinogenic Dust from Quarries
• Dust Particles from Quarries Causing Adverse Health Effects for Residents Nearby
• Lung Function and Health of Population Living Near Quarries
• Proven Health Hazards
• Village Residents Warn of Threats to Childrens' Health from Quarry
  
• Impact of Quarries on Workers
• Violations at Vulcan Plant in San Antonio
  
• Epidemiologic Study in Two Communities
• Child Health Fears Stop Quarry Expansion
  
• Quarry Effects Must be Curbed