No.4 Effect of trees

I have explained that we are able to cool outdoor temperature by utilizing fog and mist with small environmental load. But if it doesn't continue and becomes hot again immediately, we may not feel that effectively works.

Outside is actually exposed to sunshine and wind, then the temperature soon becomes hot if it does not continue generating fog. The environmental impact is small even though continuing generating fog, but people may think it wastes natural resources. Therefore it is also important how to keep cool during stopping generating fog.

My solution was to properly spray the fog on trees. It was effective to spray the fog on leaves. If there are suitable trees, it is quite effective because these can prevent blowing fog away by wind.
As I introduced in "No.3 Evaluation & measurement", temperature falls well around trees. Even if it was not dry mist, it was not stuck to trees so much. But whole trees got wet as like after raining when I continued spraying for around 20 minutes. It stayed enough cool for a while afterwards even if I stopped fog. However, it became hot sooner if there was no tree.I did not strictly measure it, but it became hot within 5-10 minutes in strong sunshine if there was no tree, and the cool was kept for 20-30 minutes when there were trees.

Because continuance effect is such a level in strong sunshine, it can last longer for 40-50 minutes in shade. I scattered fog around a fragrant olive tree in east side of my house. It was enough to spray for 20 minutes each three or four times until evening because the east side is in shade in afternoon.