Can chemicals be ‘locked-in?’

I WELCOME the news of a possible clean up of the former Hickson site, but I don’t understand the possibility of the researchers trying to ‘lock contaminates into the ground’ (Express, June 6).

To date the site still contains approximately 192 tonnes of toxic substances in approximately 200 different tanks and vessels.

A clean-up started in 2005 but did not include the removal of toxic residues from a number of storage tanks. There are four sites, Ryebread Street, Old Recreation Ground, East End Works and land adjacent to the south bank of the River Aire, which still has a permit. Landfill licence number 227 allowed deposits of very dangerous toxic chemicals, some are now banned throughout the world. People who worked on the former Hickson site have died with cancer of the bladder, I myself worked with MBOCA which causes cancer and I am monitored every four months for cancer. Here are some of the toxins deposited in the landfill site.

l Methylene-bis-orthochloroaniline (MBOCA) which causes cancer papilloma, carcinoma-in-situ and invasive carcinoma of the bladder.

l Arsenic, from the timber preservative plant.

l Benzene and homologues of benzene, (Nitro Benzene, Nitro-chlorobenzene, Toluene, Xylene).

l Dinitrophenol, Tetra chloroethane, Tetrachloride, Russian Crome.

These are just a few of the dangerous chemicals.

L R PEASE

Redhill Avenue

Castleford