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Why are some streetlights yellow?

“Some streetlights glow yellow because they use sodium vapor.”

Reference: Royal Society of Chemistry

What saturation of sulfur dioxide will cause people to cough

Sulfur dioxide is a colorless gas with a suffocating, choking odor. It is toxic to humans and concentrations as low as 8 ppm will produce coughing. Incredibly, in the Odyssey, Homer describes the burning of sulfur (formation of SO2) as a way that homes were 'fumigated'.

What happens when sodium touches water?

Sodium reacts violently with water.

Facts about the electric utility industry

Since the first power plant (thomas edison's power plant) lit up 800 light bulbs in 1882, the electric utility industry has grown to generate over 2.5 million gigawatt-hours annually, the equivalent of lighting 4.8 billion 60-watt light bulbs for a year

Another fact

“Some streetlights glow yellow because they use sodium vapor.”

More from this shelf

What saturation of sulfur dioxide will cause people to cough

What happens when sodium touches water?

Facts about the electric utility industry