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Tons of Dead Fish in Pakistan Prompt Authorities to conduct Drinking Water Tests

Samples of water and dead fish sent for forensic testing after a complaint

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Dead fish in Rawal lake
Dead fish float on the surface of Rawal lake on the outskirts of Islamabad, Pakistan, Saturday, July 15, 2017. VOA
  • Tons of dead fish found in Islamabad’s Rawal lake 
  • Samples of water and dead fish sent for forensic testing
  • No alert issued by the police and the fisheries department yet 

Authorities in Pakistan’s capital are investigating the water in the city’s main reservoir after tons of dead fish were found in a lake on the city’s outskirts.

Police officer Imran Haider says Saturday samples of water and dead fish from Rawal Lake have been collected and sent for forensic testing after a complaint received from the capital’s fisheries department.

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According to Haider, Mohammad Sadiq Buzdar of the fisheries department said there has been an increasing number of dead fish in the lake since monsoon rains began three days earlier.

Police and the fisheries department have not yet issued any alert regarding the situation.

Rawal Dam is one of two that enable water reservoir lakes for the capital. (VOA)

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Nano and Microplastics Harming Drinking Water for Humans, Says Study

The research highlights the current difficulty in detecting the presence of nano and microplastics in treatment systems

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Microplastics, plastic, EU
Plastic bottles and other plastics, including a mop, lie washed up on the bank of the River Thames in London, Britian. (Representational image). VOA

Researchers have found plastics in our water waste streams are breaking down into microplastics, causing potentially catastrophic consequences for human health and our aquatic systems.

For the study, published in the journal Water Research, researchers investigated nano and microplastics in water and wastewater treatment processes.

The team found that tiny pieces of plastic break down further during treatment processes, reducing the performance of treatment plants and impacting on water quality.

“The presence of nano and microplastics in water has become a major environmental challenge. Due to their small size, nano and microplastics can easily be ingested by living organisms and travel along water and wastewater treatment processes,” said study lead author Judy Lee, Professor the University of Surrey in the UK.

water, plastic
For the study, published in the journal Water Research, researchers investigated nano and microplastics in water and wastewater treatment processes. Flickr

“In large quantities they impact the performance of water treatment processes by clogging up filtration units and increasing wear and tear on materials used in the design of water treatment units,” Lee said.

Approximately 300 million tons of plastic are produced globally each year and up to 13 million tons of that is released into rivers and oceans, contributing to approximately 250 million tons of plastic by 2025.

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According to the researchers, since plastic materials are not generally degradable through weathering or ageing, this accumulation of plastic pollution in the aquatic environment creates a major concern.

The research highlights the current difficulty in detecting the presence of nano and microplastics in treatment systems. (IANS)