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#endpollution

All I need is the air that I breathe…

Anna Gueorguieva's picture

Also available in: 中文, Français

Photo by Jens Schott Knudsen via Flickr CC

Recent research shows that air quality affects the productivity of high-skilled workers. What does this mean for developing cities?

City governments invest a lot in job creation—they plan infrastructure, skills initiatives, and industry support with the goal to improve productivity and generate jobs and growth, especially in the high-skill sectors. Yet, there might be an important input to productivity that cities can pay more attention to: clean air.

Recent research suggests that a 10-unit increase in the air quality index decreases productivity by 0.35%. Seems marginal? This “productivity slow-down” costs the high-skill economy of China $2.2 billion per year for each additional 10 units of the air quality index.

The research in question studied the effect of air pollution on worker productivity in call centers in Shanghai and Nantong in China. The firm analyzed is Ctrip, one of the largest travel agencies in the country, employing more than 30,000 people. 50% of the workers’ pay is based on performance and the measures of productivity are very detailed and high frequency. The study concluded that there is a robust relationship between daily air pollution levels and worker productivity. On average, a 10-unit increase in the Air Quality Index (AQI) led to a 0.35% decline in the number of calls handled by a worker in a day at an AQI of 100. If we translate this to the entire Chinese high-skill industries, a 10-unit reduction of air pollution levels would increase the monetized value of improved productivity by $2.2 billion per year.

Mauritania’s race against the rising sea

Nathalie Abu-Ata's picture
Photo by Nathalie Abu-Ata / World Bank


“If we don’t take action now…the city of Nouakchott will soon be underwater.” These words, spoken by Mauritania’s Minister on Environment and Sustainable Development Amedi Camara, during a recent workshop in the country’s capital city, echoed a recurrent theme during our visits with Mauritanian authorities and local communities alike. They have stuck with me since.

Floods are not a new phenomenon for Nouakchott. A busy port city on Africa’s west coast, Nouakchott is mostly below sea level and is particularly vulnerable to rising groundwater levels, seawater intrusions, porous soils, sand extractions, and heavy rains in low-lying areas. Poorly planned port infrastructure has dramatically altered the dynamic and flow of sediments along the coast leading to substantial erosion in the city’s south (up to 25 meters annually in some years).

To make matters worse, severe and sometimes deadly floods have struck the city in recent decades. Extreme weather and human interventions have played a significant role in making the capital, with one-third of the population, or 1 million people, increasingly vulnerable to floods.