Personal Device to Monitor Air Pollution

A chimney is seen in front of residential buildings during a polluted day in Harbin, Heilongjiang Province, China, January 21, 2016. REUTERS One researcher says that air pollution levels in China may have peaked.
A chimney is seen in front of residential buildings during a polluted day in Harbin, Heilongjiang Province, China, January 21, 2016. REUTERS One researcher says that air pollution levels in China may have peaked.
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Personal Device to Monitor Air Pollution

A chimney is seen in front of residential buildings during a polluted day in Harbin, Heilongjiang Province, China, January 21, 2016. REUTERS One researcher says that air pollution levels in China may have peaked.
A chimney is seen in front of residential buildings during a polluted day in Harbin, Heilongjiang Province, China, January 21, 2016. REUTERS One researcher says that air pollution levels in China may have peaked.

To monitor the exposure to the three most harmful pollutants, a French company has unveiled a new device to measure air pollution. The device is characterized with its small size and affordable price, as well as its usability.

The “Flow” device can be used as a handheld sensor or could be attached to pushchairs, purses and bags. It can be bought worldwide for under $200.

The New Scientist website reported Romain Lacombe, CEO of Plume Labs, the Paris-based firm behind the device, who said that the sensor was tested by 100 volunteers this summer in central London.

The crowdsourced results are now being used to map the air quality of more than 2000 kilometers of the city’s pavements.

He added: “We want to help people take ownership of what they breathe.”

A few similar devices are already on sale, but Flow will be the first to be able to detect levels of the big three pollutants: volatile compounds, airborne particulates and nitrogen oxides, according to the website.

Cities depended on a few fixed monitors to track air quality over vast urban areas. But these offered little insight to the average person because pollution varies from block to block due to the effects of trees, traffic patterns and architecture.



Rise in 'Harmful Content' Since Meta Policy Rollbacks, Survey Shows

The logo of Meta is seen at the entrance of the company's temporary stand ahead of the World Economic Forum (WEF) in Davos, Switzerland January 18, 2025. (Reuters)
The logo of Meta is seen at the entrance of the company's temporary stand ahead of the World Economic Forum (WEF) in Davos, Switzerland January 18, 2025. (Reuters)
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Rise in 'Harmful Content' Since Meta Policy Rollbacks, Survey Shows

The logo of Meta is seen at the entrance of the company's temporary stand ahead of the World Economic Forum (WEF) in Davos, Switzerland January 18, 2025. (Reuters)
The logo of Meta is seen at the entrance of the company's temporary stand ahead of the World Economic Forum (WEF) in Davos, Switzerland January 18, 2025. (Reuters)

Harmful content including hate speech has surged across Meta's platforms since the company ended third-party fact-checking in the United States and eased moderation policies, a survey showed Monday.

The survey of around 7,000 active users on Instagram, Facebook and Threads comes after the Palo Alto company ditched US fact-checkers in January and turned over the task of debunking falsehoods to ordinary users under a model known as "Community Notes," popularized by X.

The decision was widely seen as an attempt to appease President Donald Trump's new administration, whose conservative support base has long complained that fact-checking on tech platforms was a way to curtail free speech and censor right-wing content.

Meta also rolled back restrictions around topics such as gender and sexual identity. The tech giant's updated community guidelines said its platforms would permit users to accuse people of "mental illness" or "abnormality" based on their gender or sexual orientation.

"These policy shifts signified a dramatic reversal of content moderation standards the company had built over nearly a decade," said the survey published by digital and human rights groups including UltraViolet, GLAAD, and All Out.

"Among our survey population of approximately 7,000 active users, we found stark evidence of increased harmful content, decreased freedom of expression, and increased self-censorship".

One in six respondents in the survey reported being the victim of some form of gender-based or sexual violence on Meta platforms, while 66 percent said they had witnessed harmful content such as hateful or violent material.

Ninety-two percent of surveyed users said they were concerned about increasing harmful content and felt "less protected from being exposed to or targeted by" such material on Meta's platforms.

Seventy-seven percent of respondents described feeling "less safe" expressing themselves freely.

The company declined to comment on the survey.

In its most recent quarterly report, published in May, Meta insisted that the changes in January had left a minimal impact.

"Following the changes announced in January we've cut enforcement mistakes in the US in half, while during that same time period the low prevalence of violating content on the platform remained largely unchanged for most problem areas," the report said.

But the groups behind the survey insisted that the report did not reflect users' experiences of targeted hate and harassment.

"Social media is not just a place we 'go' anymore. It's a place we live, work, and play. That's why it's more crucial than ever to ensure that all people can safely access these spaces and freely express themselves without fear of retribution," Jenna Sherman, campaign director at UltraViolet, told AFP.

"But after helping to set a standard for content moderation online for nearly a decade, (chief executive) Mark Zuckerberg decided to move his company backwards, abandoning vulnerable users in the process.

"Facebook and Instagram already had an equity problem. Now, it's out of control," Sherman added.

The groups implored Meta to hire an independent third party to "formally analyze changes in harmful content facilitated by the policy changes" made in January, and for the tech giant to swiftly reinstate the content moderation standards that were in place earlier.

The International Fact-Checking Network has previously warned of devastating consequences if Meta broadens its policy shift related to fact-checkers beyond US borders to the company's programs covering more than 100 countries.

AFP currently works in 26 languages with Meta's fact-checking program, including in Asia, Latin America, and the European Union.