What kinds of harm does photochemical smog cause?

Health issues:

- Irritation of the eyes, nose, and throat

- Difficulty breathing and wheezing

- Aggravation of asthma and other respiratory diseases

- Increased risk of heart attacks, strokes, and other cardiovascular problems

- Premature death

Damage to plants:

- Inhibition of photosynthesis and reduced growth

- Yellowing and browning of leaves (chlorosis)

- Leaf drop and premature defoliation

- Reduced fruit and seed production

Damage to materials:

- Fading and degradation of fabrics and dyes

- Cracking of rubber and plastics

- Accelerated corrosion of metals

Visibility reduction:

- Photochemical smog can create a haze that obscures visibility, affecting air travel, transportation, and scenic views.