4 months ago
2
Water samples collected from monitoring points on the Kalamassery agelong of the Periyar and the Kadambrayar adjacent Brahmapuram recorded higher levels of faecal contamination from January to November 2025.
The mean full coliform levels were supra the maximum limits prescribed nether the criteria for bathing by the Central Pollution Control Board, according to results compiled by the Kerala State Pollution Control Board arsenic portion of the National Water Quality Monitoring Programme of polluted stream stretches successful Ernakulam. The maximum permissible bounds of full coliform successful bathing water, arsenic prescribed by the Central Pollution Control Board (CPCB), is little than 2,500 MPN per 100 ml.
In February 2025, the full coliform number was 5,400 MPN/100 ml connected the Brahmapuram agelong of the Kadambrayar. The full coliform number connected the Manakkakadavu agelong of the Kadambrayar was 2,700 MPN/100 ml. The concern had worsened successful March 2025 aft tests revealed higher levels of faecal coliform on the Brahmapuram stretch. It was 20,000 MPN per 100 ml. The faecal streptococci level had besides exceeded the permissible bounds connected aggregate occasions connected the aforesaid stretch. It was recorded astatine 1,200 MPN per 100 ml, against the maximum of 500 MPN per 100 ml prescribed by the Central Pollution Control Board.
In July 2025, the full coliform level was 2,600 MPN/100 ml. The full coliform level successful August 2025 was 7000 MPN/100 ml astatine Brahmapuram.
The full coliform count, indicating faecal contamination, was 3,900/100 ml on the Kalamassery agelong of the Periyar successful March 2025. In April and May 2025, the corresponding figures on the Kalamassery agelong were 5,800 MPN/100 ml and 2,800 MPN/100 ml respectively.
The Department of Environment had earlier said that contamination successful the Kadambrayar was caused by discharge of home effluents from townships and households done drains and creeks starring to the waterbody. In its study submitted to the National Green Tribunal successful March 2025, it had said that leachate discharge, if any, from the Brahmapuram works and travel restrictions caused by the maturation of h2o hyacinths had further worsened the pollution.
