Show-Me State Study: Coal Tar Sealants Pervasive Stream Problem
A just-released study of coal tar sealants by Missouri State University agrees with other scientific findings across the US and Canada that coal tar sealants lead to elevated levels of PAH (polycyclic aromatic hydrocarbons) and stream degradation. The study also found that PAH levels in urban stream sediments exceeded the recommended standard in nearly 46% […]
Texas Aquifer District Stomps Out Coal Tar in Sensitive Zones
Earlier today the Edwards Aquifer Authority (EAA) voted to ban coal-tar sealcoat from two of its most sensitive areas. Originally the District contemplated a ban in all recharge and contributing zones, but a recommendation from Aquifer Management and Planning (AMP) Committee was to study the item further and include it in with a Habitat Conservation […]