A Central Pollution Control Board (CPCB) assessment found a sharp decline in river water quality across Kerala, identifying 32 polluted river stretches [1].
The findings highlight a growing environmental crisis in a region known for its lush landscapes. The degradation of these waterways threatens local biodiversity and public health as essential water sources become contaminated.
According to the report, Kerala has the second-highest number of polluted river stretches among all Indian states [1]. The data, which the CPCB collected between 2020 and 2026 [1], indicates that the state's aquatic ecosystems are under severe stress.
Officials said rapid urbanization is a primary driver of the decline. As cities expand, the infrastructure for waste management has failed to keep pace with population growth, leading to a surge in pollutants.
Untreated sewage discharge is a critical factor in the deteriorating water quality [2]. The report said the lack of adequate treatment facilities allows raw waste to flow directly into river systems, compromising the safety of the water.
The CPCB released the report in 2026 to raise alarm over these trends [1]. The assessment serves as a warning that without immediate intervention in sewage management and urban planning, the state's river networks may face irreversible damage.
While the data reflects a period ending in 2026, the systemic issues of urban runoff and sewage discharge continue to persist. The CPCB findings emphasize the need for stricter enforcement of environmental regulations, and the rapid deployment of water treatment plants to mitigate the impact of urban sprawl [2].
“Kerala has the second-highest number of polluted river stretches among all Indian states.”
The high ranking of Kerala's river pollution underscores a failure to integrate environmental safeguards into the state's rapid urban growth. By identifying untreated sewage as a primary culprit, the CPCB report shifts the focus from industrial pollution to municipal infrastructure gaps, suggesting that the state's water security now depends on its ability to modernize urban waste management.
