The industrial clusters based in Greater Kochi fall into the group of cities with high pollution levels, as per a study done by the Central Pollution Control Board (CPCB) in association with Indian Institute of Technology, New Delhi. The study had carried out an environmental assessment of industrial clusters across India, the results of which have been published online.

Under the study, a comprehensive environmental pollution index (CEPI) was calculated to help prioritise planning needs to improve the quality of the environment in industrial clusters.