Chemical Pollution

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April 1, 2024 Decoding the problems and solutions related to stubble burning
Burning of rice residues after harvest, to quickly prepare the land for wheat planting, around Sangrur, Punjab (Image: 2011CIAT/NeilPalmer; CC BY-SA 2.0 DEED)
January 22, 2023 Institutional support, monetary and proper implementation of laws along with policy framework can solve this issue, says a state-of-the-art review in crop residue burning in India
A controlled burn on long-term conservation agriculture trials (Image: CIMMYT)
September 9, 2022 Highlights from a new report released by iFOREST
An old coal-fired power plant has been dumping vast quantities of ash out in the open for many years. (Image: Lundrim Aliu/ World Bank; CC BY-NC-ND 2.0)
August 27, 2022 Study looks at microplastic types in lakes of Ladakh
(Vinay Goel, Wikimedia Commons)
August 11, 2022 This could lead to water quality crisis reinforcing the need for basin-specific management strategies
Around the world, more than a fifth of nitrogen released by human activity ends up in aquatic ecosystems (Image: Wikimedia Commons)
July 14, 2022 The river is faced with the dual problem of flood plain encroachment and growing levels of water pollution
Illegal transverse check dams (Badhals) built on Ichamati near a village in Basirhat (Image: Prithviraj Nath @ TheWaterChronicles)
Treating sewage with plants
Neknampur lake serves as a fitting example of how low cost but effective natural techniques can be used to clean city lakes that are choking with pollutants. Posted on 17 Apr, 2018 04:56 PM

A radical new method is fast emerging as an effective and sustainable solution to increasing pollution in urban lakes. Called floating treatment wetlands (FTW), they are artificial islands with plants that stay afloat on the lake. The plants clean the lake through hydroponics system, resulting in a cleaner, beautiful lake and an improved habitat for creatures that depend on it.

Floating treatment wetland at Neknampur lake. (Pic courtesy: 101Reporters)
Tourism increases black carbon in air
A study finds an increased concentration of black carbon in Gangotri region during tourist seasons. Posted on 16 Apr, 2018 03:25 PM

In a significant input for the growing debate on global climate change, a study by researchers at the Dehradun-based Wadia Institute of Himalayan Geology (WIHG) has found that there is a remarkable increase in the concentration of black carbon in the atmosphere near the pilgrim town of Gangotri in Uttarakhand during the two annual tourist seasons of April to June and during September and Octobe

Black Carbon Monitoring Station at Chirbasa near Gangotari. (Photo credit : Dr P.S. Negi, Wadia Institute of Himalayan Geology, Dehradun)
Power play chokes Korba
The video tells the story of residents of Korba and nearby villages who are affected by the fly ash from power plants which makes Korba the fifth critically polluted area in the country. Posted on 11 Apr, 2018 02:05 PM

Korba in Chhattisgarh is an industrial area which has a significant number of coal mines and thermal power plants. Fly ash is a byproduct of the thermal power plants and has become a significant problem for the residents of Korba now.

Fly-ash dust at CSEB thermal power plant in Korba.
Nanomaterial from seaweed can clean toxic water
A team of scientists have synthesised graphene-iron sulfide nanocomposite from abundantly found seaweed Ulva fasciata through direct pyrolysis technique. Posted on 08 Apr, 2018 09:02 PM

Treatment of wastewater containing industrial dyes and toxic heavy metals is a major environmental problem as available treatment techniques are not very efficient and environment-friendly. Now a team of Indian scientists has developed a nanomaterial drawn from seaweed for effective treatment of toxic wastewater without using any chemicals.

The team of scientists who developed the nanomaterial.
India plans to route water from Sharda to Yamuna
News this week Posted on 27 Mar, 2018 04:42 AM

India seeks to bring water from Nepal's Sharda river to supplement Yamuna near Delhi

Yamuna turns into a sewer at many areas. (Picture courtesy: The Indian Express)
Can legal compliance address environmental injustice?
Here are two new groundtruthing studies by CPR- Namati environmental justice (EJ) program. Posted on 18 Mar, 2018 02:47 PM

What happens after an environmental law is made or an environmental approval is granted to a project? Are all the safeguards complied with? Do the authorities in charge enforce the environmental regulations and laws proactively? What are the impacts that arise due to non-compliance with environmental regulations? How can affected communities pursue remedies? 

Landfills are a threat to the environment. (IWP Flickr photos; photo used for representation only)
Islands float on Delhi lake
Floating wetlands have been constructed on Hauz Khas lake in an attempt to naturally restore it. Posted on 08 Mar, 2018 06:09 AM

Located in the Hauz Khas urban village in the busy metropolis of Delhi is an exquisitely landscaped lush green patch. This deer park, with spotted deer, peacocks and numerous birds, leads to an incredibly beautiful lake. As per a plaque at the site, the lake is a part of the medieval (13th century) city of Delhi Sultanate.

Phytoremediation principle is used to convert Hauz Khas lake into a water purifying wetland ecosystem. (Image: Tarun Nanda)
Rajim kumbh: Leave Mahanadi alone
Rajim kumbh mela has left the Mahanadi river crying for attention. Posted on 25 Feb, 2018 07:35 PM

Around 25 lakh pilgrims across the country took a holy dip in the Mahanadi during the Rajim kumbh festival held in Rajim from January 31-February 13, 2018. For this annual religious extravaganza at the confluence of the Mahanadi, Sondur and Pairi rivers in Chhattisgarh, the state government organised various religious events.

The entrance of the CG government's culture and tourism exhibition venue at Rajim kumbh 2018.
Slow death of a river
River Mutha, which was once the lifeline of Pune, is in dire straits. Concerted and systematic efforts involving citizens, experts and administrators need to be made urgently to save the river. Posted on 30 Jan, 2018 02:46 PM

River Mutha, the pride of Pune, lovingly called 'Muthai' or 'mother Mutha', is dying a slow death, thanks to the rapidly urbanising city which is depositing huge amounts of untreated sewage and dirt in its waters.

River Mutha, as it flows through Pune city. (Source: India Water Portal)
Delhi’s e-waste problem
Toxic heavy metals from electronic waste piles in Delhi contaminate groundwater and soil. Posted on 21 Jan, 2018 08:49 AM

Widespread use of digital devices--mobile phones, tablets, computers, smart watches and more--has made electronic waste a new environmental problem. Discarded gadgets result in massive piles of e-waste, which is contaminating soil and groundwater in the national capital, a new study has pointed out. 

Heavy metals from e-waste leach into the ground polluting the groundwater and soil.
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