Jet engine lubrication oils are a major source of ultrafine particles

Ultrafine particles form during combustion processes, for example when wood or biomass is burned, as well as in power and industrial plants. Alongside road traffic, large airports are a major source of these ultrafine particles, which are less than 100 millionths of a millimetre (100 nanometres) in size. Because they are so small, they can penetrate deep into the lower respiratory tract, overcome the air-blood barrier and, depending on their composition, cause inflammatory reactions in the tissue, for example. What’s more, ultrafine particles are suspected of being capable of triggering cardiovascular diseases.

the particles originated to a significant degree from synthetic jet oils and were particularly prevalent in the smallest particle classes, i.e. particles 10 to 18 nanometres in size. Such lubrication oils can enter the exhaust plume of an aircraft’s engines, for example through vents where nanometre-sized oil droplets and gaseous oil vapours are not fully retained.

— source Goethe University Frankfurt | Jan 9, 2023

Nullius in verba


North of England train line vastly under-reports cancellations

One of the north of England’s main railway companies is taking advantage of an “outrageous” legal loophole that allows it to vastly under-report cancellations, it has emerged.

Figures obtained by the Guardian show that during the October half-term holiday, TransPennine Express (TPE) cancelled 30% of all trains, and at least 20% each subsequent week until 20 November. Most of those services were cancelled in full, but some started or ended at different stations from those advertised on the current May 2022 timetable.

TPE did not dispute these figures and apologised, blaming staff sickness, an intensive crew training programme and infrastructure issues outside its control.

Yet when it submits its performance statistics to the Office of Rail and Road (ORR), the government body that collates information about train reliability, TPE will report

— source | Helen Pidd | 28 Nov 2022

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Against federal guidance, states plan to expand highways

When President Biden signed the $1.2 trillion Bipartisan Infrastructure Package into law last November, many saw it as an opportunity to combat climate change.

The bill could slash emissions from transportation, which is responsible for 27 percent of all U.S. climate pollution. With some $600 billion in new funding for the sector, the Biden administration encouraged state leaders to build out public transit systems and expand “non-motorized” transportation infrastructure, like bike lanes. One analysis from the Georgetown Climate Center estimated that these actions could reduce transportation emissions by 14 million tons per year by 2032 — about as much as the annual emissions from 4.5 million passenger vehicles.

However, some policymakers are flouting that advice.

According to a new report from the nonprofit U.S. Public Interest Research Group, or PIRG, state and local governments are at risk of squandering federal funds to build or expand

— source | Joseph Winters | Sep 08, 2022

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A freeway ripped the heart out of Black life in Detroit

In 1945 in Detroit, Michigan, a man who is believed to be the first African-American independent record producer opened up a blues and gospel record store called Joe’s Record Shop. The store was lined with vinyl records and music posters, with a big, upright piano in the back. Joe Von Battle started the business by selling records from his personal collection. Later, he remodeled the store to include a recording studio. His shop was a focal point for the music scene on Hastings Street — the center of Black business and entertainment in 1950s Detroit.

“People sang up and down the street, they played their guitars on the corner, they sang gospel,” said Von Battle’s daughter, 67-year-old Marsha Philpot, “so my dad began to record these people.”

Von Battle recorded blues artists like John Lee Hooker and was the first person to ever record Aretha Franklin. At one point, Joe’s Record Shop had 35,000 albums in its inventory and generated the present-day equivalent of $2.5 million in revenue. “My father had been very, very successful in his record business,” Philpot said.

But in 1960, Von Battle was forced to close his shop and relocate to make way for I-375 — a giant, four-lane sunken freeway. Over a mile of Hastings Street and its surrounding land was turned over to developers, dismantling the once thriving epicenter of Black life in Detroit in order to create a high-speed thoroughfare from downtown to the surrounding suburbs. Hastings Street was home to more than 300 Black-owned businesses, including restaurants, doctors’ offices, and even eight grocery stores. Hundreds were forced to relocate or close permanently. Today, there isn’t a single Black-owned grocery store in Detroit, the Blackest big city in America.

— source | Jena Brooker | Dec 01, 2021

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New York City Subway Flooding Demonstrates Transit System Vulnerability to Climate Change

Even on a dry day, the MTA says it pumps 14 million gallons of water out of subway stations. But on Thursday, as a month’s worth of rain deluged the city inside of two hours, the vulnerability of the subway went on full display in videos of commuters wading waist-deep into pool-like stations. The Dyckman Street station on the A line in Inwood took on 28,000 gallons of water, the MTA said, while the B and D line’s Tremont Avenue stop in The Bronx was flooded by 15,000 gallons. The sudden soaking of stations in Upper Manhattan and The Bronx, which typically do not experience heavy flooding, underscored the exposure of a nearly 117-year-old subway system not built for the extreme weather wrought by climate change.

— source | Jul 10, 2021

we cannot plan development considering climate change. because the changes happening are too extreme now a days.

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38,680 traffic fatalities in 2020, up 7.2% from 2019

The National Highway Traffic Safety Administration’s (NHTSA’s) statistical projection of traffic fatalities for 2020 shows that an estimated 38,680 people died in motor vehicle traffic crashes in US. This represents an estimated increase of about 7.2% as compared to the 36,096 fatalities reported in 2019. Preliminary data from the Federal Highway Administration (FHWA) shows vehicle miles traveled (VMT) in 2020 decreased by about 430.2 billion miles—about a 13.2% decrease.

— source | 05 Jun 2021

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Living Near A Highway Is Terrible For Your Health

The study, slated for publication in the journal Environment International, looked at “ultrafine” pollutants from car exhaust rather than the larger pollutants that are traditionally the focus of air quality research. Researchers found that high concentrations of ultrafine particles — 500 times smaller in diameter than the width of a human hair — are just as toxic as larger particles. While larger particles settle in the lungs, these particles penetrate into the bloodstream, causing inflammation and elevated cholesterol levels. Chronic exposure can cause dangerous plaque buildup in the arteries and eventually lead to heart attack or stroke.

— source | 2016

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