Hyperventilation causes a in the blood concentration of co2, and thus the rate of respiration.

Hyperventilation causes a decrease in the blood concentration of carbon dioxide, and thus increases the rate of respiration. Causes for hyperventilation include stress, anxiety, certain physical illnesses and higher altitudes. Lightheadedness, dry mouth, tingling in the extremities or fainting may result.

He should put sand around the spill in order to contain it so that it won't spread