Chlorpyrifos is widely used on crops, including fruits, vegetables, nuts, corn and soybeans.
AP Photo/John Raoux
What kind of evidence does it require to get a widely used chemical banned? A professor of medicine and former state regulator explains how the case for chlorpyrifos as a threat to public health developed.
Gary Yost, Unsplash
We can fine-tune bacteria using algorithms to help them produce the things we need, from antibiotics to methane.
Paraquat’s potentially lethal effects on humans are well known. But our research has found it also causes serious environmental damage.
Phthalates can be found in many common products and types of plastic packaging.
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Scientists issued an urgent call for better federal regulation of these endocrine-disrupting chemicals. Here’s what you can do to reduce your family’s risk.
An insecticide being mixed.
Photo by Ann Johansson/Corbis via Getty Images
Small, practical messaging campaigns on pesticide toxicity can lead farmers to choose safer, less-toxic pesticides.
Wildfire smoke turned the San Francisco sky orange in the middle of the day in early September.
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To understand the risks of wildfire smoke, it helps to understand the chemicals people are breathing.
Debris in Paradise, California, after the Camp Fire, Nov. 17, 2018.
Senior Airman Crystal Housman/U.S. Air National Guard
Two environmental engineers say governments need to do more to protect people from possible water contamination after wildfires.
The same chronic illnesses associated with exposure to endocrine-disrupting compounds also increase risk of developing severe COVID-19.
Engin Akyurt and Kai Dahms/Unsplash
Endocrine-disrupting compounds are pervasive in modern life, from food packaging to shampoo. Research is connecting their effects on humans to risk of severe illness or death from the coronavirus.
Smoke billowed from the fire at a chlorine plant in Westlake, Louisiana, after Hurricane Laura moved through on Aug. 27.
AP Photo/David J. Phillip
A storm-driven chlorine gas release in a vulnerable community is the type of worst-case scenario that scientists and engineers have warned about for decades.
For combustion to occur, oxygen must be present. Ammonium nitrate prills provide a much more concentrated supply of oxygen than the air around us.
The 2018 Camp Fire north of Sacramento burned everything in its path: cars, power lines, and buildings – and contaminated local drinking water.
Justin Sullivan/Getty Images
Buildings aren’t the only things at risk in wildfires. Recent disasters in California have left local water system contaminated with toxic chemicals afterward, slowing return and recovery.
Pepper spray uses a chemical called capsaicin. It’s the same compound that makes chillies hot, but in a more intense, weaponised form.
Phosphorus was first discovered by boiling down thousands of litres of urine.
We need phosphorus for life, as well as for fertiliser to help plants grow, but raw supplies are limited.
The chemicals in nail products put nail salon workers at risk for cancer and other illnesses.
The technician who gave you that shiny manicure may be inhaling dangerous levels of toxic chemicals on the job.
One slice is never enough.
Pizza might seem like a simple food, but it’s uniquely equipped to excite our brains and thrill our taste buds.
A battery’s power comes from a chemical reaction that happens inside the cell.
Firefighting foam containing PFAS can get into waterways. But the evidence doesn’t give us reason to worry about our health.
Episodes of reported PFAS contamination are never far from the news. Here’s a run-down of what PFAS is, and why we have little reason to worry about its potential effects on our health.
‘Larry, I have to confess. I’m not a wasp. I’m an orchid.’
You can barely communicate with your kids, but these creatures are sending complex interspecies instructions.
Hoosick Fall, N.Y. is one of many U.S. communities whose drinking water has been contaminated with PFOA or PFOS.
AP Photo/Mike Groll, File
EPA is moving to regulate two chemicals from a group called PFAS that are contaminating drinking water. A public health expert explains why the agency should take much broader action.
Sodium hydroxide among a series of chemistry bottles in a typical school science lab.
The spill at Sydney’s Australian Nuclear Science and Technology Organisation facility was of a household cleaning chemical that can be dangerous if it makes contact with the skin.