Fish samples in Chennai test positive for formalin
CHENNAI : As many as 11 out of 30 samples of fish species purchased from Chinthadripet and Kasimedu, the two major fish markets in Chennai, on two different days, have tested positive for formalin, a cancer-inducing chemical used illegally to preserve fish.
The fish were tested by scientists of the Tamil Nadu Dr. J. Jayalalithaa Fisheries University exclusively for The Hindu.
A low-cost formalin detection kit developed by researchers of the State-run university was used to test the samples purchased by The Hindu for ascertaining if they contained the carcinogen that is used widely as a preservative and disinfectant.
The tests were conducted on July 4 and July 8, the days when the fish were purchased.
Only one of 13 samples of fish purchased last Wednesday from the Chinthadripet, Velachery and Neelankarai markets tested positive at the university’s referral laboratory in Madhavaram.
However on Sunday as many as 10 of the 17 fish samples purchased from Chinthadripet and Kasimedu markets tested positive for the carcinogen, causing alarm.
Formalin causes irritation in the eyes, throat, skin and stomach. In the long run continued exposure causes harm to the kidneys, liver and can even cause cancers.
This is the first time samples of fish in Tamil Nadu have tested positive for formalin.
Food Safety and Standards Authority of India (FSSAI) officials have been undertaking tests at fish markets and harbours across the State to test for formalin following a scare in neighbouring Kerala that fish sourced from here were chemically contaminated.
Fisheries Minister D. Jayakumar said use of formalin as a preservative cannot be allowed at any cost. He said tests had been conducted in Thoothukudi and other places based on information received by the department but none of those samples had any formalin.
Samples to be lifted
“Since The Hindu has brought the [Chennai] test results to our notice, we will lift samples [from fish markets] and conduct tests. We will not hesitate to take strict action against those indulging in such acts,” Mr Jayakumar said.
Both big and small lizard fish or panna or kezhanga and paarai (Malabar trevally) were found to have formalin content of above 20 ppm (parts per million). Other varieties such as sura, octopus, eri vavvaal, ottu kanava, peikanava and kelithi had formalin of around 5 ppm.
For the test, a two gram piece of meat from the fish was taken and put inside four ml of diluent and shaken so that the formalin will get into it. Then this diluent was poured into the bottle containing the reagent that turned yellow revealing that it had tested positive.
“It is a very sensitive reagent and can detect up to 0.5 milligram per kilo. The actual test takes only 10 minutes,” explained Felix, Vice Chancellor of the University.
Fish industry experts said that formalin or formaldehyde is sprayed on the fish or injected into the fish or the fish is dipped into the solution. This helps keep the fish fresh for a longer time. Usually people who buy fish check the gills for freshness, if it is red it denotes freshness, when formalin is used the gills remain red for longer periods. In some cases, fishermen also apply kumkum to retain redness.
courtesy : thehindu.com
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SC asks states to treat rising child trafficking cases as grave; seeks coordinated action
New Delhi (PTI): The Supreme Court has voiced grave concern over rising cases of child trafficking, saying gangs are operating across the country and if States and Union territories do not take immediate action, thing will go beyond control.
The court said only the state government and its home department can act vigilantly in this regard.
“As a court we can monitor, but ultimately the action has to be on the part of the state government, the police, and other agencies. Therefore, this is our humble request”, a bench comprising Justices JB Pardiwala and K V Viswanathan said during the hearing of a plea on Wednesday.
The bench was irked over the "lackadaisical" approach of several states and UTs in implementing a 2025 judgment aimed at dismantling organised trafficking networks.
Justice Viswanathan said the retrieval of children in some cases proves the problem can be tackled, but it requires a level of political and administrative will which is lacking at present.
The verdict, delivered on April 15, 2025, had mandated several institutional reforms, including completion of trials in trafficking cases within six months on a day-to-day basis.
It had also directed strengthening of Anti-Human Trafficking Units (AHTUs) and improving investigation standards.
Besides asking for setting up of state-level committees to monitor vulnerable trafficking hotspots, it had asked the authorities to treat missing children cases as trafficking unless proven otherwise.
Earlier, the bench had termed the compliance reports filed by a few states as "nothing but an eye wash."
On Wednesday, the bench noted that Madhya Pradesh, Goa, Haryana, Lakshadweep, Mizoram, Odisha, and Punjab had still failed to file reports in the prescribed format.
When the home secretary of Madhya Pradesh offered an apology for the lapse, the bench granted a "final opportunity" but warned that continued failure would lead to states being officially branded as "defaulting".
The bench noted that at least 15 states are yet to constitute review committees mandated to identify and monitor trafficking-prone areas.
The matter will now be heard on April 29.
