lake pollution bangalore

Due to rapid urbanisation and unplanned development, Bengaluru’s groundwater is getting increasingly contaminated. This issue requires urgent attention as approximately 40% of the city's population depend on groundwater (borewells, open wells and tankers) for their daily water needs such as drinking, cooking and bathing.  Contaminated groundwater could lead to health issues if it is directly consumed. If used for agricultural purposes, it could even enter the food chain.  Residents across the city have reported that borewells discharge coloured or smelly water. This indicates percolation of sewage and chemicals into the water table. Discolouration, cloudiness and bad odour are some of…

It had been over 25 years since Neelamma N Reddy went scouring for greens in Varthur lake.   The lake was a veritable buffet of greens and fish for her. She’d find over 30 varieties of fish and small crabs that could be scooped up from its banks. “Then, there were 4-5 types of greens we’d pick up. Some herbs, like Bassale soppu (Malabar Spinach) were used to treat constipation or piles. The banks had guava, coconut and jamun trees from which children used to collect fruits,” she says.  Bengaluru’s growth turned Varthur into a part of the city’s Information Technology…

Bengaluru, once known as the 'City of Lakes', has made national and international headlines as the 'City of Burning Lakes'. Lakes in Bengaluru have caught fire several times - mostly at Bellandur lake, but also in other parts of the city. The fire burns for hours, polluting the air with smoke and creating a public health hazard. Bellandur Lake, the city’s largest lake, has burst into flames many times in the recent past. The first instance was in May 2015, and then again in August 2016, February 2017, and January 2018. The 2018 fire lasted 30 hours, with smoke engulfing…

Bengaluru’s lakes have been in the news for pollution, froth, fish kill and even fire. Despite the government investing crores of rupees into reviving these lakes, and widespread citizen engagement, not much has changed. While the main reason is the lack of coordination between government departments, the absolute lack of science-based solutions is also a major gap. In this context, Ashoka Trust for Research in Ecology and the Environment (ATREE) and Biome Environmental Trust (BIOME) have developed the ‘Bangalore Citizen Science Lakes Dashboard’ to share knowledge and best practices for better management of lakes. We created a series of system…

Like many metropolitan cities in India, Bengaluru is facing a dire water crisis. There is an imminent need to manage the city's water resources in a sustainable and equitable manner. With population projection of 13.6 million in 2020, Bengaluru is experiencing high growth rates and predatory geographical expansion that subsumes surrounding peri-urban and rural areas. But necessary infrastructure is not established to meet the basic needs of housing, water, sanitation, and so on. Lacking access to formal housing, majority of residents in informal settlements are forced to rely on water from private vendors, neighbourhood sources, or illegal networks of accessing…