In contrast, some related oxidants such as chromate are considered environmentally hazardous.
In addition to the human rights issues attached to the coltan industry, the mining process itself is environmentally hazardous.
The cadmium in nickel-cadmium is highly toxic and environmentally hazardous.
Still, that there might be artifacts or graves on the property reinforces their argument: The project is environmentally hazardous.
Today, most farmers use chemical pesticides, which can be environmentally hazardous.
All environmentally hazardous substances that cannot be recycled must be banned.
The upgrading of these ores, usually by roasting, is costly and environmentally hazardous.
Moreover, they constitute environmentally hazardous substances of the worst kind.
Not even more demanding targets for the recycling of environmentally hazardous packaging are sufficient, however.
There is, in fact, a strong link between this report and that on environmentally hazardous waste which we discussed recently.
