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Methane.

http://aetinc.biz/newsletters/2010-insights/october-2010

Methane gas is relatively non-toxic; it does not have an OSHA PEL Standard. Its health affects are associated with being a simple asphyxiant displacing oxygen in the lungs. Miners previously placed canaries in deep mines to check methane gas levels. Reportedly, canaries keeled over at about 16% oxygen indicating it was time to leave.

 

Methane is extremely flammable and can explode at concentrations between 5% (lower explosive limit) and 15% (upper explosive limit). These concentrations are much lower than the concentrations at which asphyxiant risk is significant.

Your world has an unstable atmosphere of 15% oxygen, 84% methane, and 1% (and rising) CO2. Oxygen is 10% so at the very low end of what humans need. Unstable because the methane does consume the oxygen and vice versa. The world is in flux - a methane world which terraformers seeded with photosynthetic algae in the recent past. Oxygen is being rapidly produced by the greening oceans of this world. Explosions happen but are rare - there is too much methane to easily explode.

Methane.

http://aetinc.biz/newsletters/2010-insights/october-2010

Methane gas is relatively non-toxic; it does not have an OSHA PEL Standard. Its health affects are associated with being a simple asphyxiant displacing oxygen in the lungs. Miners previously placed canaries in deep mines to check methane gas levels. Reportedly, canaries keeled over at about 16% oxygen indicating it was time to leave.

Methane is extremely flammable and can explode at concentrations between 5% (lower explosive limit) and 15% (upper explosive limit). These concentrations are much lower than the concentrations at which asphyxiant risk is significant.

Your world has an unstable atmosphere of 15% oxygen, 84% methane, and 1% (and rising) CO2. Oxygen is 10% so at the very low end of what humans need. Unstable because the methane does consume the oxygen and vice versa. The world is in flux - a methane world which terraformers seeded with photosynthetic algae in the recent past. Oxygen is being rapidly produced by the greening oceans of this world. Explosions happen but are rare - there is too much methane to easily explode.

Methane.

http://aetinc.biz/newsletters/2010-insights/october-2010

Methane gas is relatively non-toxic; it does not have an OSHA PEL Standard. Its health affects are associated with being a simple asphyxiant displacing oxygen in the lungs. Miners previously placed canaries in deep mines to check methane gas levels. Reportedly, canaries keeled over at about 16% oxygen indicating it was time to leave.

Methane is extremely flammable and can explode at concentrations between 5% (lower explosive limit) and 15% (upper explosive limit). These concentrations are much lower than the concentrations at which asphyxiant risk is significant.

Your world has an unstable atmosphere of 15% oxygen, 84% methane, and 1% (and rising) CO2. Oxygen is 10% so at the very low end of what humans need. The world is in flux - a methane world which terraformers seeded with photosynthetic algae in the recent past. Oxygen is being rapidly produced by the greening oceans of this world. Explosions happen but are rare - there is too much methane to easily explode.

Methane.

http://aetinc.biz/newsletters/2010-insights/october-2010

Methane gas is relatively non-toxic; it does not have an OSHA PEL Standard. Its health affects are associated with being a simple asphyxiant displacing oxygen in the lungs. Miners previously placed canaries in deep mines to check methane gas levels. Reportedly, canaries keeled over at about 16% oxygen indicating it was time to leave.

Methane is extremely flammable and can explode at concentrations between 5% (lower explosive limit) and 15% (upper explosive limit). These concentrations are much lower than the concentrations at which asphyxiant risk is significant.

Your world has an unstable atmosphere of 15% oxygen, 84% methane, and 1% (and rising) CO2. Oxygen is 10% so at the very low end of what humans need. Unstable because the methane does consume the oxygen and vice versa. The world is in flux - a methane world which terraformers seeded with photosynthetic algae in the recent past. Oxygen is being rapidly produced by the greening oceans of this world. Explosions happen but are rare - there is too much methane to easily explode.

Methane.

http://aetinc.biz/newsletters/2010-insights/october-2010

Methane gas is relatively non-toxic; it does not have an OSHA PEL Standard. Its health affects are associated with being a simple asphyxiant displacing oxygen in the lungs. Miners previously placed canaries in deep mines to check methane gas levels. Reportedly, canaries keeled over at about 16% oxygen indicating it was time to leave.

Methane is extremely flammable and can explode at concentrations between 5% (lower explosive limit) and 15% (upper explosive limit). These concentrations are much lower than the concentrations at which asphyxiant risk is significant.

Your world has an unstable atmosphere of 15% oxygen, 84% methane, and 1% (and rising) CO2. Oxygen is 10% so at the very low end of what humans need. The world is in flux - a methane world which terraformers seeded with photosynthetic algae in the recent past. Oxygen is being rapidly produced by the greening oceans of this world. Explosions happen and are spectacular when they do, but this world is cold and wet which decreases the chances.

Your rescue party needs to be very careful not to ignite the atmosphere. No smoking. No electronics. No metal.

Methane.

http://aetinc.biz/newsletters/2010-insights/october-2010

Methane gas is relatively non-toxic; it does not have an OSHA PEL Standard. Its health affects are associated with being a simple asphyxiant displacing oxygen in the lungs. Miners previously placed canaries in deep mines to check methane gas levels. Reportedly, canaries keeled over at about 16% oxygen indicating it was time to leave.

Methane is extremely flammable and can explode at concentrations between 5% (lower explosive limit) and 15% (upper explosive limit). These concentrations are much lower than the concentrations at which asphyxiant risk is significant.

Your world has an unstable atmosphere of 15% oxygen, 84% methane, and 1% (and rising) CO2. Oxygen is 10% so at the very low end of what humans need. The world is in flux - a methane world which terraformers seeded with photosynthetic algae in the recent past. Oxygen is being rapidly produced by the greening oceans of this world. Explosions happen but are rare - there is too much methane to easily explode.