1.   Campaigners have blocked its trains transporting chlorine products.

2.   Other chlorine dioxide products, including Oxyfresh and Retardex, can be obtained through dentists.

3.   A national coalition of environmentalists urged BASF to phase out production of chlorine products, saying they are highly dangerous.

4.   A national coalition of environmentalists Thursday urged BASF to phase out production of chlorine products, saying they are highly dangerous.