Humans were greatly impacted by the disastrous eruption. The unemployment rate near the volcano went up by almost ten times, but soon returned to normal once repairs were made. A few residents were having emotional problems, going so far that the counties requested funding for the mental health. There was a huge blow to tourism, affecting the income, and gatherings, meetings etc. being relocated. This was also for a short period of time. More than 200 homes were destroyed, and air, rail, and road traffic was greatly increased due to the ash. Humans
The fine grained ash caused problems for the internal-combustion engines and other mechanical and electrical equipment. The fine ash also caused short circuits in electrical transformers producing black outs. The energy released from the lateral blast of the eruption was around 24 megatons of thermal energy. Energy
The International Trade Commission estimates there to be damage to agricultural fields caused by the eruption. The ash affected the plants by causing it to become dormant as if winter was coming. Other than that, the Mt. St. Helens eruption did not directly affect the food and water for the human population. However, more than 185 miles of roads and 15 miles of railway was damaged and might have delayed food distribution. The sewage system of many municipalities received inches of ash that clogged their pumps and filters. But, since the cities used deep wells and closed storage, their water supply was hardly affected.