UNITED24 - Make a charitable donation in support of Ukraine!

Weapons of Mass Destruction (WMD)

Table 4-38. Maximum SRS boundary-line concentrations resulting from a year of average construction activities under alternative C (in micrograms per cubic meter of air).


Averaging
Existing baselinea
Average changeb
(mg/m3)
SCDHEC standardc
Existing baseline + change as percent of standard
Pollutant
time
(mg/m3)
Expected
Minimum
Maximum
(mg/m3)
Expected
Minimum
Maximum
Nitrogen oxides1 year 14<0.01d<0.01 0.0310014 1414
Sulfur dioxide

3 hours
24 hours
1 year 		857
213
17		38.71
0.72
<0.01 		15.94
0.30
<0.01		362.25
6.83
<0.01 		1,300
365
80		69
59
21 		67
58
21		94
60
21
Carbon monoxide
1 hour
8 hours 		171
22		737
115		 330
52		6,793
1,030		 40,000
10,000		2
1		 1
1		17
11
Total suspended particulates1 year 430.01<0.01 0.037557 5757
Particulate matter less than 10 microns in diameter 24 hours
1 year		85
25 		2.47
0.01		1.03
<0.01 		23.51
0.04		150
50 		58
50		58
50		 72
50

a. Source: Stewart (1994).

b. Source: Hess (1994a).

c. Source: SCDHEC (1976).

d. < is read as "less than."



NEWSLETTER
Join the GlobalSecurity.org mailing list