IB ESS · 2021 to 2026
8.3 Urban air pollution
48 past paper questions from 22 papers across 15 exam sessions. See what repeats, then practise the same skills with AI marking.
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SL archive · 2018 to 2026
8.3 Urban air pollution
Latest exam session: May 2026
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Micro-topics in 8.3 Urban air pollution
In syllabus order. The ring is the share of papers each appears in. 1 of them has no matching questions in this archive.
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- Occasional
last May 26 P2 TZ2
- Regular
last May 25 P2 TZ3
- Rising
last May 26 P2 TZ2
- Occasional
last May 24 P2 TZ2
- Occasional
last May 26 P2 TZ2
- Due
last May 24 P2 TZ2
Exam pattern
How often each micro-topic has been examined, year by year. Each label is explained under the grid.
Does it repeat?
Top 4 of 6 micro-topics for the next sitting. Numbers are questions per year.
fewermore
| Micro-topic | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| ·Reducing urban air pollution, 2017: 0 questions | 1Reducing urban air pollution, 2018: 1 question | ·Reducing urban air pollution, 2019: 0 questions | ·Reducing urban air pollution, 2020: 0 questions | 1Reducing urban air pollution, 2021: 1 question | 2Reducing urban air pollution, 2022: 2 questions | 3Reducing urban air pollution, 2023: 3 questions | ·Reducing urban air pollution, 2024: 0 questions | 3Reducing urban air pollution, 2025: 3 questions | 1Reducing urban air pollution, 2026: 1 question | |
| ·Primary and secondary pollutants, 2017: 0 questions | 1Primary and secondary pollutants, 2018: 1 question | 2Primary and secondary pollutants, 2019: 2 questions | ·Primary and secondary pollutants, 2020: 0 questions | ·Primary and secondary pollutants, 2021: 0 questions | 3Primary and secondary pollutants, 2022: 3 questions | 5Primary and secondary pollutants, 2023: 5 questions | ·Primary and secondary pollutants, 2024: 0 questions | 3Primary and secondary pollutants, 2025: 3 questions | ·Primary and secondary pollutants, 2026: 0 questions | |
| ·Managing acid deposition, 2017: 0 questions | ·Managing acid deposition, 2018: 0 questions | ·Managing acid deposition, 2019: 0 questions | 1Managing acid deposition, 2020: 1 question | 1Managing acid deposition, 2021: 1 question | ·Managing acid deposition, 2022: 0 questions | 3Managing acid deposition, 2023: 3 questions | 2Managing acid deposition, 2024: 2 questions | ·Managing acid deposition, 2025: 0 questions | ·Managing acid deposition, 2026: 0 questions | |
| ·Natural and human sources of pollutants, 2017: 0 questions | ·Natural and human sources of pollutants, 2018: 0 questions | ·Natural and human sources of pollutants, 2019: 0 questions | ·Natural and human sources of pollutants, 2020: 0 questions | 1Natural and human sources of pollutants, 2021: 1 question | ·Natural and human sources of pollutants, 2022: 0 questions | ·Natural and human sources of pollutants, 2023: 0 questions | 2Natural and human sources of pollutants, 2024: 2 questions | ·Natural and human sources of pollutants, 2025: 0 questions | 2Natural and human sources of pollutants, 2026: 2 questions |
2 more micro-topics with a free account
- Risingappearing more often in the last two years than before
- Regularin roughly one paper in six or more
- Dueusually examined, but missing from the last two exam sessions
- Occasionalin about one paper in ten
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Questions on 8.3 Urban air pollution, by exam session
Which papers asked about 8.3 Urban air pollution, and which question numbers. Open a paper to see them highlighted.
May 2026
2 questions across 2 papers
May 2025
3 questions across 3 papers
November 2024
2 questions across 2 papers
May 2024
2 questions across 2 papers
November 2023
2 questions across 2 papers
May 2023
3 questions across 1 paper
November 2022
1 question across 1 paper
May 2022
1 question across 1 paper
November 2021
1 question across 1 paper
May 2021
2 questions across 2 papers
November 2020
1 question across 1 paper
November 2019
1 question across 1 paper
May 2019
1 question across 1 paper
November 2018
1 question across 1 paper
May 2018
1 question across 1 paper
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Frequently asked questions
Short answers about this page.
Which ESS exam sessions are covered for 8.3 Urban air pollution?
18 exam sessions from 2018 to 2026, the latest May 2026. Every Paper 1 and 2 in every timezone is read and classified in full, which gives 22 papers in this archive.
Which 8.3 Urban air pollution topic comes up most?
Reducing urban air pollution (8.3.4): in 20% of papers, last seen May 26 P2 TZ2. Usually "Outline", worth about 4 marks in a paper that includes it.
Can I see the original question and mark scheme?
No. The wording belongs to the IB. You get the citation, the marks, the command term and the skill tested, plus our own matched practice questions with worked answers and AI marking.
What do "banker", "due" and "rising" mean?
Banker: examined in at least one sitting in four and still appearing. Due: regular before, but absent for the last two exam sessions. Rising: clearly more common in the last two years. Our classification of real papers, not an IB statistic.
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