Barry Commoner

The major source of photochemical smog - petroleum-fueled vehicles - can be replaced by emission-free electric vehicles.

American Scientist

Focuses on how light causes chemical changes, often seen in plants.

Light Interaction

Some photochemical reactions are invisible but still important, like in ozone layer.

Not Always Visible

Photochemical processes can influence environmental conditions, like smog.

Environmental Impact

Used in scientific studies that focus on light's effect on chemicals.

Scientific Context

Often requires laboratories or special equipment to observe or use.

Specialized Equipment

 First, we must verify the detection of phosphine itself, and then later, we would have to confirm that this gas is coming from life and not from some unexpected geological or photochemical process. If true, this would be one of the most profound discoveries of our generation.

Sarah Rugheimer: The...

 which react to form ozone. And while some ozone in the upper atmosphere helps shield us from ultraviolet rays, on the ground, this gas can form alongside secondary particles and create photochemical smog. This brown fog can be found covering densely packed cities,

What’s in the air you...

 Smog, is a type of air pollution, that reduces visibility and has serious health effects. Smog can be divided into two categories; sulfurous and photochemical. Sulfurous smog is made up of chemical