Environmental Pollutants by Lisa Zhang

Pollution is not just about smog crowded cities or plastic filled oceans, and they don’t just affect flora and fauna. It is also about the invisible chemicals we breathe, drink, and absorb each day. Environmental pollutants are increasingly linked to a wide range of health issues, like respiratory diseases, developmental disruption, and neurological damage. In this blog, we’ll talk about what environmental pollutants are, where they come from, how they affect our health, and what we can do to reduce exposure.

What are Environmental Pollutants?

Environmental pollutants are harmful substances released into air, water, or soil. They can either be naturally formed (such as volcanic ash) or man made (like industrial waste). Common examples include heavy metals, pesticides, and microplastics.

Where Do They Come From?

Environmental pollutants generally form from a variety of sources:

• Industry: Production factories release large amounts of toxic chemicals and heavy metals into the surrounding air and water through waste drainage systems.

• Agriculture: Farmers sometimes use pesticides and fertiliser to help crops grow better, but they can seep into soil and water, carrying the chemicals into other ecosystems.

• Transportation: In the globally connected world we are living in today, car and plane travelling creates emissions, released in the form of fine particles and nitrogen oxide.

• Household products: Cleaning agents, personal care products, and even paint can be the source of harmful chemicals.

• Waste: Plastic waste breaks down into microplastics, which contaminate water and food sources.

How Do Environmental Pollutants Impact Health?

There are very serious health effects linked with environmental pollution, such as:

• Respiratory issues: Particles in the air may be inhaled, and they penetrate deep into the lungs, causing conditions like asthma. According to the World Health Organisation, almost 99% of the global population breathes air polluted to a degree which exceeds the standard health limit.

• Endocrine disruption: Chemicals like BPA will interfere with the body’s hormones, leading to developmental issues for children, infertility, and even hormonal cancers.

• Toxic heavy metals: Lead and mercury can accumulate in the body over long periods of time. These metals can cause cognitive impairment or even death.

Who Is Most Affected/At Risk?

Children and pregnant women are especially vulnerable to environmental pollutants. Children' s bodies are still under development, and they breathe in more air per kilogram of body weight. This also means that they breathe in more waste. Communities located near large factories and highways will also receive more exposure than those who reside in more environmentally friendly zones.

What Can We Do?

Although the whole system cannot be changed, there are things we can do to lower personal exposure:

• At home: Use naturally made cleaning products, avoid plastic containers for food storage, and improve the quality of air with clean ventilation or air purifiers.

• In daily life: Reduce the usage of single use plastics (as they cannot be broken down easily), choose fresh food or those which were processed minimally, and avoid products which contain risky chemicals (always remember to check ingredient lists for processed foods!).

• Support systematic change: Advocate for updated and stronger environmental policies, support/buy from companies with transparent and sustainable practises, and stay informed of local pollution issues. Every voice counts!

Environmental pollutants are often overlooked when we consider personal health, but they are a serious threat. While the issue might seem big when looked at globally, we can be aware and advocate for collective action. By understanding how pollutants form and how they affect our health, we’re able to make more informed choices and strive for a cleaner, healthier world.