Kathmandu air quality (SYNTHETIC practice table)

SYNTHETIC: invented daily PM2.5 / PM10 for 2019-2020, shaped like a Kathmandu year (high in winter, low in monsoon). It is deliberately messy: 25 missing PM2.5 values and 4 sensor error codes (-999).

Columns

date (YYYY-MM-DD), pm25 (ug/m3), pm10 (ug/m3).

Real data

Real series (Jan 2015 - Mar 2021; PM2.5, PM10, O3, SO2, NO2, CO, BC; CSV about 8.3 MiB) - see source.yml.

Ethics / limits

Single-station air data is not "the city's air". Discuss health guidance thresholds from the WHO/Nepal standard only after reading the current official values.