Encyclopedia of Environmental Science and Engineering, Volume I and II

MOBILE SOURCE POLLUTION 711

In addition to the fuel and exhaust line, additional

sources of particulates are to be found in catalysts for gas-

eous pollutant removal and from the disintegration of tires.

The monel catalyst, described previously^1 for NO x and Co

removal, deteriorates with time at about 0.019 g/mile. The

presence of lead in the fuel substantially increases the rate of

Monel deterioration.

Sheih^35 estimated that the increase in diesel emissions

concentration in the Chicago area would be predominantly

for particles having diameters smaller than one micron. At

diameters in the vicinity of 0.2 microns the concentration

would increase 10 fold.

One other source of vehicle particulate emissions which

might be mentioned is that from jet aircraft. By weight, more

10.0

1.0

0.1

0.01

0.001

0.0001

5

3

2

.5

.3

.2

.05

.02

.005

.003

.03

.002

.0005

.0003

.0002

1 2 3 4 6 7 10 15 20 25 35 50 70 100 150 200

TOTAL PARTICULATE MASS

LEAD

BROMINE

IRON

ZINC

FTP CYCLE NUMBER

PARTICULATE EMISSION (GRAMS/MILE)

FIGURE 5: Particulate mass emissions from car operating on Indolene-30, as measured by the Total Volume System, versus

FTP driving cycle number.^30

C013_005_r03.indd 711C013_005_r03.indd 711 11/18/2005 10:42:30 AM11/18/2005 10:42:30 AM