pm25_2011_durham: Air quality for Durham, NC

In OpenIntroStat/openintro: Datasets 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 in 2011.

Usage

pm25_2011_durham

Format

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

date

Date

aqs_site_id

The numeric site ID.

poc

A numeric vector, the Parameter Occurance Code.

daily_mean_pm2_5_concentration

A numeric vector with the average daily concentration of fine particulates, or particulate matter 2.5.

units

A character vector with value ug/m3 LC.

daily_aqi_value

A numeric vector with the daily air quality index.

daily_obs_count

A numeric vector.

percent_complete

A numeric vector.

aqs_parameter_code

A numeric vector.

aqs_parameter_desc

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

cbsa_code

A numeric vector.

cbsa_name

A character vector with value Durham, NC.

state_code

A numeric vector.

state

A character vector with value North Carolina.

county_code

A numeric vector.

county

A character vector with value Durham.

site_latitude

A numeric vector of the latitude.

site_longitude

A numeric vector of the longitude.

csa_code

a numeric vector

csa_name

a factor with levels Raleigh-Durham-Cary, NC

Source

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

Examples

library(ggplot2)

ggplot(pm25_2011_durham, aes(x = date, y = daily_mean_pm2_5_concentration, group = 1)) +
  geom_line()

OpenIntroStat/openintro documentation built on June 4, 2024, 4:19 a.m.