For tea, the maximum residue level (MRL) was increased by 4,000 times for both the insecticide chlorantraniliprole and the fungicide boscalid. For the controversial weedkiller glyphosate, classed as a “
probable human carcinogen” by the World Health Organization (WHO), the MRL for beans was raised by 7.5 times.
The purpose of the pesticide MRL regime is to protect public health, wildlife and the natural environment. Campaigners said the list of pesticides included reproductive toxins and carcinogens and that the weaker MRLs reduced protections for consumers in Great Britain. Northern Ireland has retained the EU MRLs.
MRLs have been weakened for 49 different pesticides, 15 of which are on a list of “highly hazardous pesticides” compiled by Pesticides Action Network UK (Pan UK), based on data from national and international authorities.
The new, weaker MRLs adopted by Great Britain come from the Codex Alimentarius, a set of international food standards produced by the UN Food and Agriculture Organization and the WHO. The Codex has been criticised by campaigners for “a history of setting weaker safety standards than European counterparts due to the influence of US and corporate lobbying”.
Strikingly, the UK chose to adopt the Codex MRLs only where they offered lower protection to consumers. Where the Codex standard was stricter, the HSE decided to retain the weaker British MRL. In the cases of residues of chlorantraniliprole and boscalid in teas, the EU also adopted the higher Codex MRL.
“This really does beggar belief,” said Mole. “The new government urgently needs to flip this topsy-turvy approach on its head.” The HSE said a British MRL could be higher because a pesticide was applied in greater quantities in Britain than in the scenario considered for the Codex standard.