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24 June, 2019 00:00 00 AM

Promote health for all through a healthy environment

healthyPeople
Promote health for all through a healthy environment

Humans interact with the environment constantly. These interactions affect quality of life, years of healthy life lived, and health disparities. The World Health Organization (WHO) defines environment, as it relates to health, as “all the physical, chemical, and biological factors external to a person, and all the related behaviors.” Environmental health consists of preventing or controlling disease, injury, and disability related to the interactions between people and their environment.

The Healthy People 2020 Environmental Health objectives focus on 6 themes, each of which highlights an element of environmental health:

1. Outdoor air quality

2. Surface and ground water quality

3. Toxic substances and hazardous wastes

4. Homes and communities

5. Infrastructure and surveillance

6. Global environmental health

Creating healthy environments can be complex and relies on continuing research to better understand the effects of exposure to environmental hazards on people’s health.

Why is environmental health important?

Maintaining a healthy environment is central to increasing quality of life and years of healthy life. Globally, 23% of all deaths and 26% of deaths among children under age 5 are due to preventable environmental factors.1 Environmental factors are diverse and far reaching. They include:

Exposure to hazardous substances in the air, water, soil, and food

Natural and technological disasters

Climate change

Occupational hazards

The built environment

Understanding environmental health

The 6 themes of the Environmental Health topic area draw attention to elements of the environment and their linkages to health.

Outdoor air quality

Poor air quality is linked to premature death, cancer, and long-term damage to respiratory and cardiovascular systems. Progress has been made to reduce unhealthy air emissions, but in 2008, approximately 127 million people lived in U.S. counties that exceeded national air quality standards. Decreasing air pollution is an important step in creating a healthy environment.

Surface and ground water

Surface and ground water quality concerns apply to both drinking water and recreational waters. Contamination by infectious agents or chemicals can cause mild to severe illness. Protecting water sources and minimizing exposure to contaminated water sources are important parts of environmental health.

Toxic substances and hazardous wastes

The health effects of toxic substances and hazardous wastes are not yet fully understood. Research to better understand how these exposures may impact health is ongoing. Meanwhile, efforts to reduce exposures continue. Reducing exposure to toxic substances and hazardous wastes is fundamental to environmental health.

Homes and communities

People spend most of their time at home, work, or school. Some of these environments may expose people to:

Indoor air pollution

Inadequate heating and sanitation

Structural problems

Electrical and fire hazards

Lead-based paint hazards

These hazards can impact health and safety. Maintaining healthy homes and communities is essential to environmental health.

Infrastructure and surveillance

Preventing exposure to environmental hazards relies on many partners, including state and local health departments. Personnel, surveillance systems, and education are important resources for investigating and responding to disease, monitoring for hazards, and educating the public. Additional methods and greater capacity to measure and respond to environmental hazards are needed.

Global environmental health

Water quality is an important global challenge. Diseases can be reduced by improving water quality and sanitation and increasing access to adequate water and sanitation facilities.

Emerging issues in environmental health

Environmental health is a dynamic and evolving field. While not all complex environmental issues can be predicted, some known emerging issues in the field include:

Climate change

Climate change is projected to impact sea level, patterns of infectious disease, air quality, and the severity of natural disasters such as floods, droughts, and storms.

Disaster preparedness

Preparedness for the environmental impact of natural disasters as well as disasters of human origin includes planning for human health needs and the impact on public infrastructure, such as water and roadways.

Nanotechnology

The potential impact of nanotechnology is significant and offers possible improvements to:

Disease prevention, detection, and treatment

Electronics

Clean energy

Manufacturing

Environmental risk assessment

However, nanotechnology may also present unintended health risks or changes to the environment.

The built environment

Features of the built environment appear to impact human health—influencing behaviors, physical activity patterns, social networks, and access to resources.

Exposure to unknown hazards

Every year, hundreds of new chemicals are introduced to the U.S. market. It is presumed that some of these chemicals may present new, unexpected challenges to human health, and their safety should be evaluated prior to release.

These cross-cutting issues are not yet understood well enough to inform the development of systems for measuring and tracking their impact. Further exploration is warranted. The environmental health landscape will continue to evolve and may present opportunities for additional research, analysis, and monitoring.

Blood lead levels

As of 2017, there are approximately 4 million houses or buildings that have children living in them who are potentially being exposed to lead. Nearly half a million U.S. children ages 1 to 5 have blood lead levels at or above 5 micrograms per deciliter (µg/dL), which is currently the reference level at which CDC recommends public health actions be taken.

Even blood lead exposure levels as low as 2 micrograms per deciliter (µg/dL) can affect a child’s cognitive function. Since no safe blood lead level have been identified for children, any exposure should be taken seriously. However, since lead exposure often occurs with no obvious signs or symptoms, it often remains unrecognized. CDC’s Childhood Lead Poisoning Prevention Program is committed to the Healthy People 2020 goals of eliminating childhood lead exposures and decreasing disparities in the differences in average risk of lead exposure based on race and social class as public health concerns.

 

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Editor : M. Shamsur Rahman

Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

Editor : M. Shamsur Rahman
Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

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