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Air quality update 4. Week two of level 4 restrictions
https://niwa.co.nz/atmosphere/lockdown-air-quality-updates/week-two-of-level-4-restrictions
Air quality update 5. Week three of level 4 restrictions.
https://niwa.co.nz/atmosphere/lockdown-air-quality-updates/week-three-of-level-4-restrictions
Air quality update 8. End of level 3 restrictions
https://niwa.co.nz/atmosphere/air-quality-updates-during-covid19-level-restrictions/air-quality-update-8-end-of-level-3-restrictions
Water & Atmosphere 24, July 2020
https://niwa.co.nz/publications/water-and-atmosphere/water-atmosphere-24-july-2020
Water & Atmosphere 26, August 2021
https://niwa.co.nz/publications/water-and-atmosphere/water-atmosphere-26-august-2021
Air quality update 6. Week four of level 4 restrictions
https://niwa.co.nz/atmosphere/lockdown-air-quality-updates/air-quality-update-6-week-four-of-level-4-restrictions
Air quality update 7. End of level 4 restrictions
https://niwa.co.nz/atmosphere/lockdown-air-quality-updates/air-quality-update-7-end-of-level-4-restrictions
Air quality update 9. Level 3 to Level 2
https://niwa.co.nz/atmosphere/air-quality-updates-during-covid19-level-restrictions/air-quality-update-9-level-3-to-level-2