Thermal Pollution Effects on Air, Water, and Ecosystems

Abstract

Thermal pollution caused by the discharge of heated effluents from industries, power plants, and urban heat islands is one of the most common yet often neglected forms of environmental pollution. The present study provides a comprehensive analysis of the effects that arise due to thermal loading of various kinds on aquatic ecosystems, atmospheric phenomena, and biodiversity on land. Our extensive research approach involves obtaining field data, conducting laboratory bioassays, and carrying out advanced modelling tasks to determine the cause-and-effect relationships between temperatures abnormalities and some of the ecological parameters such as amounts of dissolved oxygen, species diversity indices, etc. The research showed that the stable rise in temperature of 5°C as compared to the ambient temperature has resulted in a decrease in dissolved oxygen content by 18-24% and a drop in benthic macroinvertebrate diversity by 47%. Moreover, the effect of urban heat islands has added 1.5-3.8°C to local air temperatures leading to an increase in heat stress experiences by per-urban ecosystems. In the end, we give recommendations on how to avoid thermal pollution and indicates the possibilities of implementing the main findings of this study.