## [4.2.0] - 2026-07-10 Air Quality Screening: road emissions calculation and air dispersion modeling (55 algorithms, 16 groups). ### Added - **Road Emissions** (Microclimate group) - calculates segment emissions (g/km/day) from a traffic volume field and a documented generic NOx-proxy emission factor. - **Air Quality Screening** (Microclimate group) - generates a unitless pollution dispersion index grid and calculates receiver levels and exposure bands, accounting for wind speed, decay exponent alpha, and street canyon effects. - Pure-NumPy `engine/air.py` with emissions, sample strength, concentration, canyon factor, and exposure bands. ### Tested - 372 engine unit checks and 294 real-QGIS e2e assertions on QGIS 3 LTR and QGIS 4. ## [4.1.0] - 2026-07-10 Cycling and LTS: cycling stress classification and low-stress connectivity (53 algorithms, 16 groups).
yes
geo140195philo
2026-07-09T22:03:28.518868+00:00
3.22.0
4.99.0
None
no
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