| hexavalent chromium(noun, technology, entity, waste, pollution) |
| international regulation(noun, technology, entity, waste, pollution) |
| keyboard(noun, technology, entity, waste, pollution) |
| lead(noun, technology, entity, waste, pollution) |
| lithium(noun, technology, entity, waste, pollution) |
| lost equipment(noun, technology, entity, waste, pollution) |
| memory(noun, technology, entity, waste, pollution) |
| mercury(noun, technology, entity, waste, pollution) |
| mobile phone(noun, technology, entity, waste, pollution) |
| nickel(noun, technology, entity, waste, pollution) |
| office electronic equipment(noun, technology, entity, waste, pollution) |
| old satellite(noun, technology, entity, waste, pollution) |
| operational satellite(noun, technology, entity, waste, pollution) |
| orbital debris co-ordination working group(noun, technology, entity, waste, pollution) |
| orbital debris remove(noun, technology, entity, waste, pollution) |
| perfluorooctanoic acid(noun, technology, entity, waste, pollution) |
| planetary protection(noun, technology, entity, waste, pollution) |
| plastic(noun, technology, entity, waste, pollution) |
| printed circuit board(noun, technology, entity, waste, pollution) |
| printer(noun, technology, entity, waste, pollution) |