As with most jobs, salaries vary by location and experience. The  average salary in the US for pipeline welders in 2014 is $64,778;  the average (for the same time period) i â¦ n San Francisco is $74,857.  [source link attached]. + 2 others found this useful.he  average salary in the US for pipeline welders in 2014 is $64,778;  the average (for the same time period) i â¦ n San Francisco is $74,857.
Certainly more than 30 percent of Limaâs population lives in slums; two slums alone contain more than 3 million people, San Juan and Cono Sur (Davis, Planet of Slums).
Slums in Nairobi. Mukuru is one of the biggest slums in Nairobi, It is estimated to be home to about 700,000 people. It stretches along the Nairobi Ngong River, situated on waste lands in the industrial area of the city between the Outer Ring Road and the North Airport Road and Mombasa Road.