Reporter Briefing

Built for this briefing’s air quality walk. Start recording when you set off, capture the route and what people along it were breathing, then export the day for notes and follow-up.

App name Reporter Briefing Bundle ID uk.ac.erg.reporter-briefing Version 1.2.0 (162)

On the walk

Start recording Tap to locate you and begin the briefing walk START

Stop recording Tap to stop · map follows your walk STOP

Start / Stop recording for the outing — one control centres the map on you while you walk, then stops when you’re done.

The app logs journeys and stops. When you confirm these, NO₂ / O₃ / PM₁₀ / PM₂.₅ exposure are calculated for each, so you can see where pollution varied along the route.

Today’s timeline

7:527:15

🚶

Morning walk37 min

NO₂ 22 O₃ 51 PM₁₀ 18 PM₂.₅ 9

9:057:55

Monmouth Coffee1h 10m

NO₂ 17 O₃ 44 PM₁₀ 28 PM₂.₅ 11

9:579:43

🚇

Jubilee Line14 min

NO₂ 61 O₃ 28 PM₁₀ 48 PM₂.₅ 26

11:2010:05

City Hall plaza1h 15m

NO₂ 24 O₃ 49 PM₁₀ 21 PM₂.₅ 10

As you move through the day Reporter Briefing builds a timeline of your day and calculates an ongoing time-weighted average for each pollutant.

Sunday 12 July Export

CSV briefing-day.csv GeoJSON briefing-day.geojson

Export a CSV or GeoJSON of your day from the button next to the Average toggle to review your data for the story.

Intro screens

Matches the in-app onboarding copy from Brand.swift (Reporter Briefing / build 162).

1 · Welcome

9:41

Air pollution exposure demo app.

Reporter Briefing is a demo app from The Environmental Research Group at Imperial that uses high quality spatial pollution data to provide users with modelled exposure estimates for trips and stops. It was built specially for this reporter briefing session.

Today's route

2 · How it works

9:41

How Reporter Briefing works

📍

Tracks your route

Uses your phone’s location plus other device signals to detect journey types and stop locations.

💨

Exposure feedback

Provides modelled realtime exposure estimates for NO₂, PM₁₀, PM₂.₅ and O₃ for your journeys and stops.

⏱

Builds your exposure timeline

Reporter Briefing builds a visual timeline of your day and allows export of your data for analysis.

Today's timeline

7:527:15

🚶

Morning walk 37 min

NO₂ 22

O₃ 51

PM₁₀ 18

PM₂.₅ 9

9:057:55

Monmouth Coffee 1h 10m

NO₂ 17

O₃ 44

PM₁₀ 28

PM₂.₅ 11

9:579:43

🚇

Jubilee Line 14 min

NO₂ 61

O₃ 28

PM₁₀ 48

PM₂.₅ 26

3 · Privacy / location

9:41

Your data stays with you.

Before we ask for location access, here is exactly what Briefing does with your data on this briefing device.

🔒

Stored on your device only

All journey and exposure data lives on your phone. Never uploaded or shared with anyone.

📍

Background location

Needed to log your route and match air quality to where you actually were.

✓

No account required

No sign-up, no email. Briefing works entirely offline and locally.

Allow “Briefing” to use your location?

Briefing uses your location to match air quality to your route during the briefing walk.

Don't Allow

Allow Always

For this briefing

Journalists on the walk

One install for the air quality outing — route, exposure, and a timeline you can talk to on the street.

ERG science

Exposure estimates use Environmental Research Group modelled air quality for London.

On-device

Timeline stays on the phone; you choose what to export and share after the walk.

Journey replay

Replay of the Clean Air Fund Reporter Briefing sensing walk from the Garden Museum to Victoria Tower Gardens, led by Dr Kayla Schulte and Andrew Grieve from the Environmental Research Group at Imperial College London. Colours show modelled pollution along the route from ERG Imperial’s realtime Nowcast (based on the ERG Imperial / GLA LAEI). The scale is normalised to the min and max of each pollutant on this walk. Use the pollutant selector to compare species, and the timeline scrubber to explore the route in detail.

Satellite fly-along —

0 —

3D fly-along —

0 —

Timeline scrubber

— 0.0s / 20s

Concentration along route

Loading…