Introduction
Environmental justice is a concept that expresses the right of all individuals, regardless of their social or economic background, to enjoy a healthy and safe environment. However, global and local studies show a clear gap in pollution levels and health impacts between affluent and poor neighborhoods, making this issue one of the most prominent environmental health challenges.

What is Environmental Justice?
Environmental justice is the equitable distribution of environmental risks and benefits, such as air and water quality and green spaces, among all segments of society. This also includes the right to participate in decision-making related to the local environment.

The Gap Between Neighborhoods: Reality and Realities
Slums:
• Often located near factories, landfills, and waste treatment plants.
• Suffer from poor sanitation and ventilation infrastructure.
• Lack green spaces and afforestation.
• They have higher levels of air, water, and soil pollution.
• Their residents are more susceptible to chronic and infectious diseases.
Upper Neighborhoods:
• Contain a clean environment and advanced health services.
• It has more effective environmental monitoring.
• It provides green spaces and parks that reduce pollution.
• It reduces exposure to environmental hazards.

Real-Life Examples
• In many cities, waste incinerators or cement factories are built next to poor areas simply because their residents lack the political or economic power to object.
• Studies in some countries have found that children in poor neighborhoods suffer from higher rates of asthma and respiratory diseases than those in affluent neighborhoods.

Reasons Behind the Lack of Environmental Justice
• Poor political representation of poor residents.
• Government neglect and haphazard planning.
• Class or ethnic discrimination in some countries.
• Lack of community awareness of environmental and health rights.
Conclusion
Environmental justice is not a luxury; it is a human right. The environmental gap between affluent and poor neighborhoods not only leads to disease and health problems, but also deepens social and economic disparities. Through awareness and the demand for justice, we can build healthier and more equitable societies for all.