If you fill the atmosphere with toxins, then you really cannot be surprised if the solar radiation transmission through it becomes toxic to humans.

Vitamin S – The sunlight (S) vitamin, however too much or too little will make you sick.

A person who avoids sunlight may eventually develop solar radiation deficiency sickness.

Utility electricity is a known hazardous biological toxin and the toxicity of it is increasing as it progresses into harmonic electronic power generation (Wind & Solar) and wireless radio frequency (RF) radiation smart/AMR/AMI meters.

Filtering solar radiation with air pollution is a bad idea.

There is no limit on the level that the reflections can be at and in a modern environment, such as a city, the albedo can increase the power levels many times of the sky based solar radiation of direct and diffuse combined. The trees prevent the albedo reflections from occurring.