They use CO2 to kill pigs in Australia. It's supposed to be a low level to render them unconscious before they're killed but most seem to use about 20% which suffocates them in a few minutes. They scream as they are lowered down in a cage into the pit where the CO2 density is at it's highest.
20% is instant death and this idiot and his 40% are typical misinformation for those thick enough to accept it.
We're currently at 410ppm and things start to go wrong for us at 600ppm, which isn't that far away at the rapid rate it's increasing.The effects of CO2 on adults at good health can be summarized to:
- normal outdoor level: 350 - 450 ppm
- acceptable levels: < 600 ppm
- complaints of stiffness and odors: 600 - 1000 ppm
- ASHRAE and OSHA standards: 1000 ppm
- general drowsiness: 1000 - 2500 ppm
- adverse health effects may be expected: 2500 - 5000 ppm
- maximum allowed concentration within a 8 hour working period: 5000 - 10000 ppm
- maximum allowed concentration within a 15 minute working period:30000 ppm
The levels above are quite normal and maximum levels may occasionally happen from time to time. In general - ventilation rates should keep carbon dioxide concentrations below 1000 ppm to create indoor air quality conditions acceptable to most individuals.
Extreme and Dangerous CO2 Levels
- slightly intoxicating, breathing and pulse rate increase, nausea: 30000 - 40000 ppm
- above plus headaches and sight impairment: 50000 ppm
- unconscious, further exposure death: 100000 ppm
