# HOW MANY UNHEALTHY DAYS IN OUR AREA? – B

Last updated: June 30, 2020

Math Skill: < , >, = symbols / Bar graphs

Science Area: Pollution

Environmental Area: Air Quality

Grades: 2nd, 3rd,  4th, 5th grades

Area level: Community-scale

Purpose: Learn the number of unhealthy days 10 counties in Southwest Indiana for the last 5 years (2014 – 18) and develop awareness of air quality

### BACKGROUND FOR THE TEACHER

Air pollution carries a significant risk to human health and the environment. Children are particularly vulnerable to the harmful effects of air pollution.

There are many sources that cause air pollution. Burning fossil fuels for electricity generation and transportation purposes is one of the major contributing factors to air pollution caused by human activity.

#### Health Effect

Air pollution is a significant contributor the development of respiratory infections, heart disease, asthma, pneumonia, and lung cancer. Epidemiological studies show that each year, more than 30,000 people are killed from cardiopulmonary disease linked to air pollution nationwide (WebMD, 2019).

(Source: UCLA Institute of Environment)

Children are considered to be more susceptible to the harmful effects of air pollution than adults since they spend more time outdoors and breathe 50% more air per pound of body weight than adults. Adverse health conditions include chronic cough and bronchitis, reduced lung function, wheezing and asthma attacks, and respiratory death.

### TEACHER GUIDE

The map and the bar graph represent the number of unhealthy days for elder people and children in 10 counties in Southwest Indiana for the last 5 years (2014– 18). Students  are asked to create and interpret a bar graph and compare numbers of unhealthy days among given counties in Indiana. The map and the bar graph are created based on data obtained from  AirCompare.

### WORKSHEETS & ANSWER KEY

Math Skill: < , >, = symbols / Bar graphs

Students are asked to interpret a bar graph that compares the number of unhealthy days in 10 counties in Southwest Indiana during 2014 and 18.  They use the symbols <, >, and = to compare numbers.

### RELATED WORKSHEETS

HOW MANY UNHEALTHY DAYS IN OUR AREA?

Math Skill: Creating bar graphs