📖+10 XP
🎧+10 XP
✅+15 XP
Level A1 – BeginnerCEFR A1
2 min
74 words
- Wildfire smoke raises ozone near the ground.
- This happens across the continental United States.
- Higher ozone is bad for people's health.
- Scientists studied many years of weather and air data.
- They compared days with and without smoke.
- Some places show much higher ozone after fires.
- Clear days after fires can still be risky.
- Added ozone makes it harder to improve air quality.
- Older people are more at risk.
- Many deaths are linked to smoke.
Difficult words
- wildfire — A large uncontrolled outdoor fire.
- smoke — Air with small dark particles.
- ozone — A gas near ground that can harm.
- continental — Relating to a large land area.
- study — To look at information carefully.studied
- air quality — How clean or dirty the air is.
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you ever seen wildfire smoke near you?
- Do you check air quality before going outside?
- Who in your family might be more at risk from smoke?
Related articles
31 Oct 2025
30 Dec 2025
20 Dec 2025
New ultrasound method improves diagnosis of breast masses
Researchers developed a new ultrasound signal-processing method that distinguishes fluid cysts from solid breast masses. In initial patient tests doctors identified masses correctly far more often than with conventional ultrasound, which could reduce biopsies and follow-ups.
28 Feb 2026
1 Aug 2025