Microplastics found in Karnataka lake for nearly 45 years
Researchers have found that Madagadakere, a lake in Karnataka, has been dealing with microplastic pollution since 1975.
Levels peaked around 2010, with up to 450 tiny plastic particles per kilogram of sediment—showing just how long plastics have been hanging around in even "natural" spots.
Where's it coming from?
Most of the plastic bits were found near the lake's northeastern inlet, where a stream brings in waste from homes and farms.
Polypropylene and polyethylene (the stuff used in bags and packaging) made up over half the particles.
Monsoon rains also washed more plastics into the lake.
Why does this matter?
If rural lakes like Madagadakere are this polluted, city lakes could be even worse thanks to more people and industry.
The researchers say better waste management and cutting down on single-use plastics are key if we want to keep our water cleaner for the future.