Others blamed the toxic environment of their online communities for the attack.

Even so, workers continue to labor in this highly toxic environment.

Special equipment such as tripod hoists, harnesses, and others may be required to extricate a worker from a toxic environment, without unduly endangering rescue personnel.

The factories also had very little ventilation for the chemicals and fumes to escape from, trapping all of the chemicals in and creating a very toxic environment.

Production of diving equipment was slowly abandoned in favour of respiratory filtering equipment for hazardous and toxic environments.