Vinyl chloride, which was being transported on a number of the 150 train cars owned by Norfolk Southern, is a key cause for concern in the aftermath of the derailment. The chemical is a known carcinogen, and is dangerous when released into the environment. In this piece, we’re providing a timeline, an explainer on the chemicals being carried by the train, the impact zone of the derailment and release of said chemicals, and the other basics you need to know.

What Was the Train Carrying?

The company that owns the train, Norfolk Southern, released a document detailing the train cars and what each carried, as well as whether or not it was damaged and/or derailed. Here are the highlights: Aside from dangerous chemicals, the train was carrying things like sheet steel, semolina, cement, malt liquor, and paraffin wax.

The Threat of the Chemical Substances

Vinyl chloride: a gas which is commonly used to make PVC plastics. It is extremely flammable and produces toxic fumes when burned. It is also carcinogenic and can cause a myriad of health issues. Butyl acrylate: a liquid used for making sealants, adhesives, and paints. It can cause skin, respiratory, and eye irritation. Benzene residue: benzene is a highly flammable liquid. It is used to make things like rubbers, plastics, and dyes. It evaporates extremely quickly into the air and if exposed at high levels, it can cause dizziness, unconsciousness, tremors, irregular heartbeat, among other symptoms. Ethylhexyl acrylate: a liquid used to produce plastics and paint. It can cause respiratory and skin irritation. It can also produce a hazardous vapor under appropriate heat. Ethylene glycol monobutyl: a liquid that is primarily used as a solvent for inks and paints, as well as dry cleaning solutions. It is acutely toxic and can inflict serious or permanent injury. Vapors from the liquid can irritate the nose and eyes, and, if ingested, can cause vomiting and headaches. Combustible liquids

According to the CDC, many of these substances are frequently transported across the U.S.; benzene, for example, ranks in the top 20 chemicals by production volume in the country.

The Timeline

Friday, February 3rd: The train, which was heading from Madison, Illinois to Conway, Pennsylvania, was carrying various products from frozen vegetables to industrial chemicals. Near East Palestine, Ohio, just before the Pennsylvania border, 38 of the train’s 150 train cars derailed and subsequent fires caused damages to another 12. Additionally, 11 of the derailed train cars carried hazardous material, the most dangerous being vinyl chloride. The derailment caused a large fire and ominous plumes of smoke over East Palestine, but there were no fatalities or injuries. According to the National Transportation Safety Board (NTSB), the cause of the derailment is still under investigation. Saturday, February 4th: Environmental Protection Agency (EPA) crews began running air pollution and water runoff tests. They detected contaminated water in two streams, Sulphur Run and Leslie Run. Sunday, February 5th: The EPA and Norfolk Southern’s contractors continued testing, and recovery efforts were underway at the contaminated water sites. Monday, February 6th: Responders conducted a controlled burn of toxic materials to destroy the remaining vinyl chloride, which posed a threat of explosion and subsequent toxic fumes and shrapnel. Because of this the standing evacuation order was extended to include a larger area. From the Ohio governor’s announcement: Wednesday, February 8th: Just days later, the governor announced that it was safe for residents to return home as air quality tests were coming back clean. In the last week: Reports have been coming in of people feeling symptoms related to the release of toxic chemicals. Additionally, the Ohio Department of Natural Resources, reported that 3,500 fish were found dead in Ohio waterways as a direct result of the spill from the train derailment. The EPA, however, has screened the air quality inside more than 400 homes, finding levels to be safe. A statement from the regional director of the EPA said that: “Since the fire went out on February 8, EPA air monitoring has not detected any levels of health concern in the community that are attributed to the train derailment.” On Wednesday, the 15th, Norfolk Southern representatives pulled out of a meeting with town officials, causing outrage among residents. The following day, EPA administrator, Michael Regan, visited East Palestine to quell the anger and fears, but residents are still unhappy and skeptical of the testing. The largest remaining issue is that water quality connected to the Ohio River, which is still being monitored. The governor has recommended only drinking bottled water.

The Overall Impacts

The town of East Palestine is home to just over 4,000 people and the crash happened dangerously close to the city of Pittsburgh, PA. Contamination in the water supply have led to the deaths of thousands of fish and people are now complaining of reactions to the chemical leakage. Norfolk Southern has set up an Assistance Center and donated over $1 million to help people cover costs of evacuation, as well as conducting extensive testing of air and water quality. The governor is now calling for tighter regulations on rail companies and a number of lawsuits have been filed against Norfolk Southern. on But over the past five decades, these numbers have declined by 50%, and orangutans are estimated to completely disappear in the next 50 years. Currently, the world’s most endangered great ape is on a path to extinction. This illustrated graphic by Shehryar Saharan uses a wide range of information to highlight the threats that led to the downfall of the world’s orangutans, and what can be done to prevent their extinction. Sources include National Geographic, the New England Primate Conservancy, WWF, the IUCN Red List, Current Biology, Our World in Data, Nature, AAAS, and Britannica.

Where Are the Orangutans?

These long-haired, orange, and gentle primates are closely related to humans. They are extremely intelligent, and also crucial to the ecosystem as they help spread the seeds of trees in the forests they inhabit. Found exclusively in the rainforests of Indonesia and Malaysia, these tree-dwellers are Asia’s only great apes. Their three species are all found on the islands of Sumatra and Borneo.

Bornean Orangutans

The dark reddish-haired Bornean Orangutans are more likely than the others to come down from their trees and travel the ground in search of fruit. According to the IUCN, their population declined by over 50% in the past 40 years to a range of 55,000‒104,700, making it a critically endangered species.

Sumatran Orangutans

More social than their Bornean cousins, Sumatran Orangutans are often seen feasting on fig trees in large groups and don’t need to travel the ground. Historically distributed over the entire massive island of Sumatra and further south into Java, the species’ range is now restricted to the north of the big island.

Tapanuli Orangutan

Discovered in North Sumatra in 2017, the Tapanuli Orangutan is the newest-discovered great ape and the rarest one. With an estimated population of just 800 surviving individuals, these critically-endangered apes are teetering on the brink of extinction.

Threats

Like wildlife across the world, the orangutan population is threatened by factors like climate change, forest fires, and urbanization and development. However, the biggest drivers are the orangutan’s loss of habitat due to palm oil production, deforestation, as well as hunting and trapping. Over the past 20 years, orangutans have lost over 80% of their habitat to deforestation for palm plantations, agriculture, mining, and infrastructure. One palm oil plantation can require thousands of hectares of tropical forests to be bulldozed. Forced into a smaller areas with less food and shelter, the rest are in a constant game of hide and seek with hunters and poachers looking to capture them for food, artefacts, and the illegal pet trade of baby orangutans.

Our Role in Their Conservation

From lipsticks and body lotion to biofuels and wood, many items we use drive deforestation for their creation. In the case of orangutans, avoiding items that use the very palm oil produced in plantations that destroy their habitats plays a big role. On a larger scale, there are organizations like The Orangutan Project that are campaigning to end the deforestation of orangutan habitats and conserve the depleting population.

Explainer  What to Know About the Ohio Train Derailment - 87Explainer  What to Know About the Ohio Train Derailment - 53Explainer  What to Know About the Ohio Train Derailment - 61Explainer  What to Know About the Ohio Train Derailment - 16Explainer  What to Know About the Ohio Train Derailment - 66Explainer  What to Know About the Ohio Train Derailment - 42Explainer  What to Know About the Ohio Train Derailment - 26Explainer  What to Know About the Ohio Train Derailment - 47Explainer  What to Know About the Ohio Train Derailment - 34Explainer  What to Know About the Ohio Train Derailment - 92Explainer  What to Know About the Ohio Train Derailment - 25Explainer  What to Know About the Ohio Train Derailment - 8Explainer  What to Know About the Ohio Train Derailment - 71Explainer  What to Know About the Ohio Train Derailment - 63