Groundwater contamination due to hydrocarbon extraction activities in the Niger Delta: a potential challenge towards sustainable environment and public health

Groundwater is a vital resource sustaining communities in the Niger Delta, where access to clean drinking water is limited. However, the increasing hydrocarbon extraction in the Niger Delta has led to the release of hydrocarbon contaminants (HCCs), compromising groundwater quality, environmental integrity, and posing a threat to public health systems. Groundwater systems in the Niger Delta are heavily polluted with Total Petroleum Hydrocarbon (TPH) levels reaching 42,200 µg/L, far beyond international safety limits. Elevated levels of Heavy metals (HMs) such as cadmium, nickel, lead, and volatile organic pollutants exceed regulatory thresholds, rendering local water unsafe for consumption and harming aquatic ecosystems. The consequences include agricultural decline, biodiversity loss, and increased health risks such as reproductive disorders and cancer. Despite regulatory frameworks, weak enforcement, vast rever networks, and corporate negligence, contamination is exacerbated. Sustainable solutions, including stricter environmental policies, advanced remediation techniques, and community engagement in decision-making, are critical. Bioremediation, renewable energy adoption, and improved waste management can mitigate long-term damage while fostering ecological restoration. Strengthening compliance mechanisms and ensuring transparency in hydrocarbon operations are essential to safeguarding groundwater resources. This study highlights the pressing need for integrated scientific and policy-driven approaches to safeguard water sources and public health, advocating for sustainable environmental management in the Niger Delta. Without immediate intervention, the continued degradation of groundwater threatens both ecosystems and human livelihoods, highlighting the pressing necessity of enforceable solutions for lasting impact.