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date,
hour and date_time are ignored with a warning;
last_hours is removed.pm25_download_netcdf() fetches V6.GL.03 (1998-2024)
from the AWS satpmdata bucket; the v6.gl.02.04
bucket is gone.vayuayan_cache_dir(); files in
the Python package’s cache are reused.pm25_v5gl04_monthly() is now
pm25_monthly(version = "V5GL04").cpcb_get_file_path() returns CPCB’s entries as sent:
filepath (was filePath) and year
as CPCB gives it.theme_vayuayan() (the ggplot2 theme of the package’s
figures) and plot_sensor_vs_reference().compute_us_aqi(), us_aqi_sub_index(),
us_aqi_category(), us_aqi_color() and
us_aqi_pollutant_name() calculate the US EPA AQI with the
May 2024 EPA tables. Labels with a mass unit, such as
"O3 (ug/m3)", are converted to ppm or ppb at 25 degrees
C.compute_aqi(),
aqi_sub_index(), daily_aqi(). Above the Severe
band the sub-index continues on the same slope, as in CPCB’s AQI
calculator, and the AQI is rounded half up.cpcb_download_raw_station_data(),
cpcb_download_hourly_city_data(),
cpcb_download_hourly_station_data(),
cpcb_raw_to_long(),
cpcb_station_daily_aqi().cpcb_tidy_daily(),
cpcb_city_daily(), cpcb_station_daily()."Anand Vihar, Delhi"), not just ID.cpcb_get_nearest_stations() and
stations_to_city_summary().version ("V6GL03",
"V6", "V5", "V5GL04") and
region ("AS" for the smaller Asia files).pm25_get_point(),
pm25_get_stats_by_polygon(),
pm25_monthly().india_boundary() and pm25_map().oaq_stations_table();
oaq_fetch_monthly_stations() takes several providers.oaq_sensors(),
oaq_readings(), oaq_daily_means(),
oaq_daily_records(),
oaq_check_daily_records(), oaq_nearest_cpcb(),
oaq_city_tally(); cpcb_raw_readings() for
several stations.compare_daily_records(),
daily_record_summary(),
oaq_audit_daily_records() and the
plot_daily_record_*() figures (ggplot2).readings_mean(), sensor_completeness(),
sensor_plausibility(), collocated_precision(),
peer_ratio(), sensor_accuracy(),
ratio_by_humidity().aqi_health_impact(),
aqi_pollutant_category(), cpcb_live_to_long()
and cpcb_live_metrics().NaN values (some daily files of
2025) are read with NA; before, oaq_readings()
and the functions that use it left those days out.oaq_fetch_monthly_stations() failed when providers
return different columns or id types; oaq_get_city_latest()
needs a lower-case city in OAQ’s paths and now lower-cases it; OAQ data
requests are retried after network errors and 5xx statuses. The OAQ
examples use real sensors.get_aqi_categories() returns character(0)
for empty input.analyze_station_data() counted columns instead of
cities.std divides by n (population standard
deviation of the grid cells).These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.