Most people are aware that outdoor air pollution can affect their health. However, indoor air pollution can have a significant negative impact on health. According to HVAC Companies in Pakistan study of human exposure to air pollution, indoor pollution levels can be two to five times, and in some cases 100 times or more, higher than outdoor pollution levels. 90 percent of the time indoors.
The Definitions of Good Indoor Air Quality (IAQ) Management by HVAC Companies in Pakistan
HVAC Companies in Pakistan control the air pollution introduction of outside air and its proper distribution; And Maintain an acceptable temperature and relative humidity. Temperature and humidity cannot be ignore. For thermal comfort, in addition, temperature and humidity are one of the many factors that influence indoor pollutant levels.
External sources also need to be consider. Since outdoor air enters the school building through windows, doors and ventilation systems, ground transportation and maintenance activities are among the factors that affect the level of indoor pollution and the quality of outdoor air in school yards.
Why is the IAQ important?
In a comparative risk study conduct by the Environmental Protection Agency’s Scientific Advisory Group (HVAC Companies in Pakistan) over the past few years, indoor air pollution was rank among the five largest environmental risks to public health. A good IAQ is an important component of a healthy indoor environment. Schools can help achieve their main goal of educating their children.
Failure to prevent or respond to IAQ problems quickly can increase long-term and short-term health effects for students and staff, including:
- cough;
- Eye infection.
- head hurts;
- allergic reaction;
- exacerbation of asthma and / or other respiratory diseases;
In rare cases, it can contribute to life-threatening conditions such as legionellosis and carbon monoxide poisoning. One in thirteen school-age children has asthma. It is the leading cause of absenteeism due to chronic illness. There is strong evidence that indoor exposure to allergens (mites, pests, mold, etc.) plays a role in causing asthma symptoms. These allergies are common in schools. There is also evidence of exposure to diesel emissions from school buses and other vehicles, and these problems.
Exacerbate Asthma and Allergic Reactions are:
- Comfort and student performance affecting class attendance
- Reducing the efficiency of teachers and staff
- It accelerates deterioration and reduces the efficiency of factories and physical equipment in the school.
- It increases the likelihood of school closures and relocation of residents.
- The relationship between school principals, parents and staff is strain.
- Create a negative promotion
- impact on community trust; And
Create a liability problem
Indoor air problems can be delicate and do not always have a small impact on health, well-being and vegetation. Symptoms include headache, fatigue, shortness of breath, stuffy nose, coughing, sneezing, dizziness, nausea, and eye irritation. throat and skin. Symptoms are not always cause by poor air quality. However, it can be cause by other factors such as lack of light, stress and noise. Because of differences in sensitivity among schoolchildren, Indoor air quality problems can affect a group of people or just one person. It can affect each person in different ways.
Individuals who may be particularly expose to indoor air pollutants include, but are not limit to:
- Asthma, allergy or chemical sensitivity
- respiratory system diseases
- immunodeficiency (due to radiation, chemotherapy, or disease);
- Contact lenses.
Some people may be at particular risk of exposure to pollutants or their mixtures. For example, people with heart disease may be more likely to be expose to carbon monoxide than healthy people. People expose to significant levels of nitrogen dioxide also have an increase risk of developing respiratory infections.
In addition, a developing child’s body may be more sensitive to environmental exposure than an adult. The child breathes more air. Eat more food and drink more water in proportion to your weight than adults. Therefore, the air quality in the school is of particular concern. Maintaining proper indoor air is more than just a matter of “quality” and covers the safety and management of investment in students, staff, and facilities.
