The sky is powder blue, and the sun magnificent, as I stride through glittering grass and fallen sycamore seeds to Dowth, a Neolithic passage tomb in County Meath.

Up to 55% of roadside traffic pollution is made of non-exhaust particles, with around 20% of that pollution coming from brake dust.

The Trump administration is working to weaken U.S. environmental regulations in many areas, from water and air pollution to energy development and land conservation.

A federal jury in California has unanimously decided that the weedkiller Roundup was a “substantial factor” in causing the lymphoma of 70-year-old Edwin Hardeman, who had used Roundup on his property for many years.

A recent study showed that community water fluoridation was associated with lower IQ scores in young children. Opponents of water fluoridation jumped on the study, claiming that it confirms the dangers of fluoride on the developing brain.

By 2050, many scientists estimate that the world food supply will have to increase sharply from today’s level to meet anticipated demand from a global population of 9 to 10 billion people.

Ever since Alexander Fleming discovered penicillin growing naturally on a petri dish, we have been aware of the power of chemicals produced by microbes. But we have only recently realised their vast potential.

Blue light has gotten a bad rap, getting blamed for loss of sleep and eye damage. Personal electronic devices emit more blue light than any other color.

Acclimatising to heat is a tough gig. Since 1970, central Australian regions have warmed 1.2ᵒC and as the world continues to get warmer, increasingly common and increasingly intense heat waves will make acclimatising even tougher.

Many people believe that chemicals, particularly the man-made ones, are highly dangerous.

Like humans, many bacteria like to spend time at the beach. The so-called flesh-eating bacteria, Vibrio vulnificus, don’t just like the beach; they need it, and rely on seasalt for survival.

The World Health Organisation recently published its latest noise pollution guidelines for Europe. The guidelines recommend outdoor noise levels that should not be exceeded for aircraft, road and rail noise and two new sources: wind turbine and leisure noise.

Everything is a toxin, or has the potential to be, in the field of toxicology.

When the Flint water crisis took place in 2014 and 2015, one of my graduate nursing students decided to get involved.

You vacuum it, sweep it and wipe it off your furniture. But do you know what it actually is – and how it may affect your health?

Bed nets. Insecticides. Sterile and genetically modified insects. Now scientists are adding a genetically engineered toxic fungus to the arsenal of weapons to wipe out mosquitoes that carry the malaria parasite.

I recently found myself in the surreal world of the Consumer Electronics Show in Las Vegas discussing the next generation of pollution sensors that one day you might find inside your phone.

The measles outbreaks continue to spread, with New York City declaring a public health emergency and requiring people in four ZIP codes to have their children vaccinated or face penalties, including a fine of US$1,000 and or imprisonment.

Following a measles outbreak in Rockland County in New York State, authorities there have declared a state of emergency, with unvaccinated children barred from public spaces

Blooming spring flowers signal the beginning of spring, but for millions of people, they also signal the onset of the misery: allergy and asthma season.