Skip to main content

If you live in a city, air pollution is so bad you might as well be smoking

You’ve probably heard about the heavy layers of smog that hang over major metropolitan areas such as Beijing and Los Angeles. But it’s difficult to imagine the damage of something you can’t really see, such as air pollution. Well, it turns out that walking through a smog-infused city can be just as bad for your health as smoking cigarettes can be.

Shit, I Smoke! is an app designed by digital developers Marcelo Coelho and Amaury Martiny that translates the amount of pollution in your city into the number of cigarettes that could theoretically cause the equivalent amount of damage. Taking real-time pollution data from actual air quality stations around the world, the app uses the city’s PM2.5 number (a microscopic particle that is present in greater quantities in polluted cities) to produce a cigarette count. The free app is available in the App Store and through Google Play.

Coelho and Martiny were inspired to create the app after reading an article co-authored by Richard Mueller, a physics professor at the University of California, Berkeley. The article analyzes the similarities between smoking-related deaths and the effects of being exposed to high levels of PM2.5. According to the study, “Here is the rule of thumb: one cigarette per day is the rough equivalent of a PM2.5 level of 22 μg/m3 (…) Of course, unlike cigarette smoking, the pollution reaches every age group.” The study goes on to conclude that Beijing’s PM2.5 level equates to smoking four cigarettes per day, while Los Angeles County’s pollution levels are equivalent to half a cigarette a day — better than Beijing, but still harmful to human health.

Martiny has personal experience living in a polluted city, having resided in Beijing during the years leading up to the 2008 Olympic Games.  “I personally saw a huge transformation of the city,” Martiny said. “In the beginning, I could see big blue skies, and there were not so many cars. It was quite pleasant,” he told CityLab. Martiny said that the air quality took a turn for the worse when Beijing’s rapid industrialization saw coal-burning plants begin spewing pollutants into the air more aggressively than before.

“The city changed its face, right before I decided to leave. It was really not livable; the air was horrible to breathe, and I just couldn’t stand to live there any longer,” Martiny said.

According to Martiny and Coelho’s app, a resident in Paris may end up smoking anywhere between three to six cigarettes in a single day — or at least, encounter pollution that produces the same level of damage. In Mexico City, people could be smoking as many as 6.5 cigarettes a day, while in Delhi, that quantity is 20 cigarettes, a staggering number.

Coelho and Martiny hope their app will awaken people around the world to the realities of air pollution.

“These air-quality monitoring stations are just numbers, numbers that are very specific to professionals who work in environmental issues,” Martiny said. “So when you make this conversion to cigarettes, it makes it easier to understand what people are dealing with and the consequences air quality has in their daily lives.”

Editors' Recommendations

Gia Liu
Former Digital Trends Contributor
Roborock S8 MaxV Ultra vs. Ecovacs Deebot X2 Combo: Which premium robot vacuum is best?
The Roborock S8 MaxV Ultra placed in its dock.

Roborock and Ecovacs are two of the biggest names in the world of robot vacuums. The companies have been producing some of the best robot vacuum and mop combos for years, and that trend has continued into 2024 with the Roborock S8 MaxV Ultra and Ecovacs Deebot X2 Combo. Both are ultra-premium devices that clock in at over $1,000, and we awarded both of them impressive scores in our reviews. In short, it's hard to go wrong with either robot vacuum.

However, there are some key differences between the Roborock S8 MaxV Ultra and the Ecovacs Deebot X2 Combo. From suction power and mopping skills to pricing and additional features, here's a comprehensive look at the two robot vacuums to help you decide which is best for your home.
Pricing and availability

Read more
Samsung Spring Sale: Get up to $915 off smart ranges today
A Samsung smart range with the Smart Oven camera.

Samsung's Spring Black Friday sale has slashed the prices of all kinds of home appliances, including gas and electric ranges. There are discounts available for Samsung's smart ranges too, which will allow you to enjoy savings of up to $915. Feel free to check out all the ranges that are cheaper than usual in the ongoing sale, but if you want to focus on getting a smart range for your kitchen, read on to learn all about them and how much you'll have to pay.

What to buy in Samsung's Spring Black Friday sale for smart ranges
Samsung's smart ranges are equipped with the Smart Oven Camera, which will allow you to check on the food that you're cooking through a livestream on your phone. You can even make time-lapse videos and share them on social media. You'll enjoy this feature on the Samsung Bespoke 6.3. cu. ft. smart slide-in electric range, which is from $2,536 for a $737 discount, and the Samsung Bespoke 6.0. cu. ft. smart slide-in gas range, which is from $2,659 for savings of $760. Both smart ranges have illuminated precision knobs that light up to let you know that the home appliance is on, and they work with the Samsung SmartThings app for pre-heating the oven, planning meals, downloading cooking modes, and much more.

Read more
How to reset the Nanoleaf Skylight
The Nanoleaf Skylight lighting up a room various shades of purple.

The Nanoleaf Skylight is a unique piece of hardware. Unlike most Nanoleaf products that are quick to install or easy to move and replace, the Skylight is designed as a permanent fixture in your home. Instead of simply plugging it into an electrical outlet, you'll need to hardwire it onto your ceiling – and once it's in place, you'll want it to stay there for years.

However, like all electronics, it's possible for your Nanoleaf Skylight to start acting up. And since there's no easy way to get the entire unit down from your ceiling, you might be wondering how you can quickly solve the problem. Thankfully, Nanoleaf designed a simple way for you to reset the Nanoleaf Skylight without the need to disassemble the entire setup.

Read more