Air on the Water

“In May the PLA [Port of London Authority] released its own air quality strategy for the Thames, including targets to cut NOx and particulates by half over the next 25 years.
Such measures are already being implemented in the Thames Clippers, but critics have pointed out that even with these changes pollution levels would still far exceed those of road vehicles.
“To me it’s weak – it’s a lot of smoke and mirrors to say they are doing something.”” https://www.independent.co.uk/environment/air-pollution-river-thames-boats-transport-shipping-ferries-nitrogen-dioxide-sadiq-khan-a8411561.html

The mirrors are making the smoke seem twice as bad as it actually is.

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Smoggey Sauce

“Beijing has extended a ban on outdoor barbecues to restaurants operating in some suburban areas as it tries to improve its notoriously poor air quality in case it wins the 2022 Winter Olympics. … The government blames them for contributing to smog, despite much public ridicule that dirty factories are more to blame.” (http://uk.reuters.com/article/2015/05/07/us-china-olympics-smog-idUKKBN0NS04V20150507)

The decision is a boost for athletes on a sashimi diet.

Exposure

“Low-cost monitoring devices to vastly expand the amount of data that are publicly available on forms of air pollution such as particulate matter and toxic gases … are easy to deploy and can complement data from official networks. … Work is also under way to develop wearable sensors to monitor personal exposure levels.” (http://www.nature.com/news/environmental-science-pollution-patrol-1.16654)

Always check it’s safe before you expose yourself.

Smessage

“Poor air quality has persisted with [Chinese] officials continuing to focus on economic growth, and lax enforcement of environmental regulations remains rife. In a sign of growing environmental activism, Greenpeace East Asia projected the message “Blue Sky Now!” on to a facade of the Drum Tower, a historic building north of the Forbidden City.” (http://www.theguardian.com/environment/2014/oct/10/china-pollution-levels-hit-20-times-safe-levels)

Unfortunately no-one can see the message for smog.