what are some effects on the environment of nuclear weapon testing?

Question

i really need some answers please help me.

Answer 1

1. Above ground testing can create fall out (radioactive dust) that can be spread by the wind. It also contaminantes the soils in the area and creates a green radioactive glss called trinitite form the blast melting soil and rock at the surface in the fireball.
2. Below ground testing (if the blast does not breach the surface) eliminates fall out and contamination of the surface. The underground blast vaporizes a spherical cavity in the rock and causes some of the rock around the cavity to melt - most of the radionuclides from the blast are held within this glassy rind. It the blast is above the water table, water seeping through the ground can leach radionculdes from the glass and carry them down to the water table. If the blast was below the water table, ground water can leach rads from the glass. The waer can then migrate away from the testing area and may potentially be taken up by plants, animals, and humans (but this takes a long time). Underground blasts can also create subsidence craters has the ground above the underground blast cavity sinks.

Answer 2

i know the land can suffer with radiation poisoning, as for weapns i know that if for instance, i heard the mustard gas from fields in WWI still, if dug up, can be deadly since the amount of toxic gas that has soaked into the ground. so in conclusion, with a blast like that, i would think the earth would soak up something form the explosion and kill all or genetically alter the molecules or something...