Oddly enough in my section of London and it's 4 out of 6, which is not far from Ilford where i grew up and just down the road from Leytonstone, i noticed a couple of you scored 1 & 2!
rating of 4 means there is a strong chance of nitrogen dioxide levels exceeding the annual legal limit. Just 1 in 200 GB postcodes reach this category or higher. Sensitised individuals (eg. Asthma sufferers) should manage exposure and exercise levels accordingly and there are likely to be some health impacts of long-term exposure.
This might explain why all of a sudden this year, my hayfever and chesty crap has comeback to haunt me, first time in over 30 years! either way i haven't ridden this bike since the week before last
