The environmental health of the Lalam River is a topic of local concern and action.
* **Water Quality:** Like many urban streams in Kerala, the Lalam River faces challenges from domestic wastewater runoff and occasional solid waste dumping. However, heavy monsoon rains provide seasonal flushing that temporarily restores water clarity. * **Flora and Fauna:** The riverbanks are lined with tropical vegetation, including bamboo, coconut palms, and various riparian shrubs. The waters support local fish species, though populations fluctuate based on water quality and seasonal flow. * **Conservation Efforts:** Campaigns to construct check dams, clear blockages, and penalize illegal waste dumping are periodically launched by the Pala Municipality and environmental NGOs. * **Climate:** The basin experiences a humid tropical climate, heavily influenced by the seasonal monsoons which dictate the river's depth and flow rate.
