The New Atlantan Feed had a higher sulfur content that, when burned, 
produced a plutonic reek that permeated everything for dozens of miles 
downwind, making the fires seem much closer than they really were. Shanghai was 
smelling pretty sulfurous as Nell walked into it across one of the bridges 
linking downtown Pudong with the much lower and older Bund. The Huang Pu had 
been too wide to bridge easily until nano had come along, so the four downtown 
bridges were made of the new materials and seemed impossibly fragile compared 
with the reinforced-concrete behemoths built to the north and south during the 
previous century.