pm25_2011_durham: Air quality for Durham, NC

In openintro: Data Sets and Supplemental Functions from 'OpenIntro' Textbooks and Labs

Air quality for Durham, NC

Description

Daily air quality is measured by the air quality index (AQI) reported by the Environmental Protection Agency.

Usage

pm25_2011_durham

Format

A data frame with 449 observations on the following 20 variables.

date

Date

aqs_site_id

a factor with levels 37-063-0015

poc

a numeric vector

daily_mean_pm2_5_concentration

a numeric vector

units

a factor with levels ug/m3 LC

daily_aqi_value

a numeric vector

daily_obs_count

a numeric vector

percent_complete

a numeric vector

aqs_parameter_code

a numeric vector

aqs_parameter_desc

a factor with levels Acceptable PM2.5 AQI & Speciation Mass PM2.5 - Local Conditions

csa_code

a numeric vector

csa_name

a factor with levels Raleigh-Durham-Cary, NC

cbsa_code

a numeric vector

cbsa_name

a factor with levels Durham, NC

state_code

a numeric vector

state

a factor with levels North Carolina

county_code

a numeric vector

county

a factor with levels Durham

site_latitude

a numeric vector

site_longitude

a numeric vector

Source

US Environmental Protection Agency, AirData, 2011. http://www3.epa.gov/airdata/ad_data_daily.html

Examples

pm25_2011_durham

openintro documentation built on Sept. 1, 2022, 9:06 a.m.