Pollution app pulled in Vietnam after ‘coordinated campaign’ of abuse

Air quality levels in Hanoi reached 'unhealthy' levels for several days last week, prompting the government to warn vulnerable groups to stay indoors or wear face masks outside. — Reuters

HANOI: A leading air quality monitoring app was removed from Vietnam's Apple and Google stores after it said it was attacked in a "coordinated campaign" for posting pollution data from the country's smog-choked capital.

AirVisual's Facebook page was also taken down in Vietnam after a deluge of messages from users accusing the site of publishing unreliable data in a bid to sell its products.