30-tonne of fish were found dead near Hindustan Shipyard Limited, Visakhapatnam district, India
Fisherfolk in Visakhapatnam district said they would lose their livelihood in future owing to rising marine pollution due to release of untreated effluents into sea water by various industries in around the Visahkapatnam city. However, APPCB said the fish died due to asphyxiation on Saturday and Sunday and not by any chemical contamination in thse waters.
If the ammonia levels in the waters are less than two per cent, chemical contamination is possible, said APPCB.
However, industries in the area including Hindustan Corporation Limited and Coromandel Fertilizers have not released any harmful effluents into the sea, they said.
Speaking to Express, Superitendent Engineer of APPCB, Usman Ali Khan said they collected water samples from the area showed zero oxygen after examination on Sunday.
Oxygen levels plummeting in less than four Counts Per Minute had resulted in the death of tonnes of fish which is quite commonplace, he said.
The water samples and dead fish were sent to the Central Institute of Fish Technology in Vizag for further examination. Read More