Ref.

Gas

Time

Concentration

C

RH

Coupons

[32]

OCS, H2S, SO2

5 week

2.5 - 0.26 ppm

2.66 - 3.64 ppm

22

50

Silver

[33]

SO2, NO2

30 hours

10 - 22 ppm, 1.8 ppm

25

80% - 90%

Tin

[34]

H2S

22 - 77 days

50 ppb, 2 ppm

30, 80

40%

Copper

[35]

SO2+NO2

75 SO2 + 120 ppb NO2

Copper

[36]

Acetic and formic acid vapors

One, two and four weeks

formic acid 160 ppb, acetic acid 170 ppb, CO2 350 ppm

22

95%

Lead

[37]

H2S, NO2, Cl2

4, 10 days

10, 200, 10 ppb

30

70%

Copper

[38]

Mixture of NO2, SO2, O3

200 ppb SO2, 200 ppb O3. NO2 ppb

25

80%

Copper

[39]

Vapor HNO3

7 days

325 μg/m−3

25

65%

Copper

[40]

Mixture of SO2, H2S

SO2 75, H2S 50 (ppb)

25

75%

Copper

[41]

Mixture of SO2, NO2

10, 30, 60 hour

SO2 75, NO2 120 (ppb)

25

75%

Copper

[42]

Formaldehyde, acetic and formic acid

135 days

0.04, 0.4, 4 ppmv

25

54%, 75%

Copper, lead

[43]

formic and acetic acid

21 days

100, 200, 300 ppm

30

100%

Copper

[44]

HNO3

2 weeks

126 (ppb)

25

65%

Copper,

[45]

NO2, NO2 + SO2

2 weeks

800, 800 + 800 (µg/m−3)

30

90%

Zinc

[46]

SO2

4 week

(10 ppm)

25

90%

Copper

[47]

SO2 + O3

4 week

476 ppb + 500 (ppb)

30

70%

Copper

[48]

NO2 + SO2

4 week

200 + 3000 (ppb)

25

90%

Steel

[49]

H2S

4 week

50 - 200 (ppb)

25

80%

Copper

[50]

SO2 + NO2

14, 21, 28 days

200 and 800 (µg∙m−3)

35

70, 90

Copper

[29]

O3

24 h

500 ppb

25

50%, 90%

Silver