What is considered the second most prevalent source of water quality impairment in Virginia's estuaries?

Sedimentation from agricultural activities is considered the second most prevalent source of water quality impairment in Virginia's estuaries due to its significant impact on the aquatic environment. Agricultural practices often lead to increased soil erosion, which contributes to sediment runoff. When sediment enters water bodies, it can cloud the water, reducing sunlight penetration, which is crucial for aquatic plants and organisms. This can disrupt the habitat for fish and other aquatic life, leading to decreased biodiversity and health of the estuarine ecosystem.

In Virginia, with its extensive agricultural lands, the movement of sediment as a result of farming activities can significantly affect water quality. The connection between land use practices and sedimentation is critical in understanding water quality issues, making this choice particularly relevant to the challenges faced in maintaining healthy estuarine environments.