mg
(milligram)
|
=
|
1
____
1,000
|
gram
| |
---|---|---|---|---|
μg
(microgram)
|
=
|
1
____
1,000,000
|
gram
|
ppm
|
=
|
parts per million
| |
ppb
|
=
|
parts per billion
| |
m3
|
=
|
cubic meters
| |
mo
|
=
|
month
|
Maximum Permitted Sound Levels, dB(A)
| ||
---|---|---|
Continuous Slow Meter Response
| ||
Sound Measured Within Adjacent
|
M-1
|
M-2
|
Residential districts
|
50
|
50
|
Commercial districts
|
60
|
65
|
M-1 District lot adjacent to noise source
|
70
|
—
|
Maximum Permitted Sound Levels, dB(A)
(re: 0.002 Microbar)
| ||
---|---|---|
Impact Fast Meter Response
| ||
Sound Measured Within Adjacent
|
M-1
|
M-2
|
Residential districts
|
60
|
60
|
Commercial districts
|
70
|
75
|
M-1 District lot adjacent to noise source
|
80
|
—
|
Table I
| |||
---|---|---|---|
District
|
Adjacent Lot Line
(within zone)
|
District Boundaries
(on or beyond)
|
Residential District Boundary
|
M-1
|
C
|
B1
|
A
|
M-2
|
—
|
B2
|
A
|
NOTES:
| ||
---|---|---|
1
|
Commercial only
| |
2
|
M-1 and commercial only
|
Table II
Maximum Peak Particle Velocity (inches per second)
| |||
---|---|---|---|
Vibration
|
A
|
B
|
C
|
Steady state
|
0.02
|
0.05
|
0.10
|
Impact
|
0.04
|
0.10
|
0.20
|
District
| |||
---|---|---|---|
Standards
|
M-1
|
M-2
| |
Particulates, settleable
| |||
During any 12 consecutive months 50% of the values of the 30-day
average concentrations shall not exceed
|
0.30 mg/cm2/mo
|
Same as M-1
| |
During any 12 consecutive months, 84% of the values of the 30-day
average concentrations shall not exceed
|
0.45 mg/cm2/mo
|
Same as M-1
| |
Particulates, suspended
| |||
During any 24-hour period average concentrations shall not exceed
|
250 μg/m3
|
Same as M-1
| |
During any 12 consecutive months, 50% of the values of the 24-hour
average concentrations shall not exceed
|
45 μg/m3
|
55 μg/m3
| |
During any 12 consecutive months, 84% of the values of the 24-hour
average concentrations shall not exceed
|
70 μg/m3
|
85 μg/m3
|
NOTE: Source: New York State Ambient Air Quality Standards
|