Urban living is fun – and it's on the rise. In 2018, statistics show that 55%* of the world's population resides in urban areas, compared to 30% back in 1930. But together with city living comes a side effect: pollution.
In our daily life we rush between countless appointments on the bus or train, cross paths with hundreds of other people, sit in the dry and stale air of heated air-conditioned waiting rooms, move through cigarette smoke, run across streets and bike through car exhaust fumes – all these are apparent factors that do not only stress the Urban us, but also our Urban skin. But all the while, rather unnoticed, fine dust and dirt also accumulate on our skin – no matter which city we live in. It's the kind of pollution we don't think about much, partly because we can't see or smell it (save the cigarette smoke, perhaps), but nonetheless, it's all around us every day. And it's causing our skin to be out of balance. In fact, air pollution today is the second-biggest negative influence on skin, after sunlight and UV rays.
The fine pollutant particles are also referred to as particulate matter. They are particularly small, some 10 microns (PM10) and others only 2.5 microns (PM5.5) in size. Settling on the skin and small enough to penetrate deep into pores, where they get stuck and aren't easy to remove.
*Source: World Urbanization Prospects: The 2018 Revision.