population density

The population density is highest in this area, so there is more waste, and fewer people have access to cars to take their rubbish to the tips.

Given the age of those assets, the high operational costs of working around high population density and its miserable track record, it's very unlikely that Thames would sell for anywhere near that.

The fires are burning in a forest area of Iwate Prefecture, which is Japan's second largest prefecture and has the country's second-lowest population density.

Coyotes tracked in the study had larger home ranges in areas with more pollution, higher population density and lower income compared with those in areas the researchers describe as less burdened.

The broad picture of what they were doing was broken down further by levels of pollution, wealth, population density and other variables.