Checklist 3
Chapter 4, Environmental Factors
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Summary checklist (yes = correct; no = incorrect)
ENVIRONMENTAL FACTORS (CHAPTER 4)
Noise
Guidelines on Noise
1.	Is the noise level below 80 decibels?
2.	Is annoyance due to noise avoided? 
3.	Are rooms perhaps too quiet?
Noise Reduction at Source 
4.	Has a low-noise working method been chosen? 
5.	Are quiet machines used? 
6.	Are machines regularly maintained?
7.	Are noisy machines enclosed?
Noise Reduction through Workplace Design and Work Organization
8.	Is noisy work separated from quiet work? 
9.	Is there an adequate distance to the source of noise? 
10.	Is the ceiling used for noise absorption? 
11.	Are acoustic screens used? 
Hearing Conservation 
12.	Are hearing conservation measures suited both to the noise and to the user? 
Vibration 
Guidelines on Vibration 
13.	Are health and safety risks from vibration avoided?
14.	Are shocks and jolts prevented? 
Preventing Vibration 
15.	Is vibration tackled at its source? 
16.	Are machines regularly maintained? 
17.	Is the transmission of vibration prevented? 
18.	Are measures at the individual level applied only as a last resort? 
Illumination 
Guidelines on Light Intensity 
19.	Is the light intensity for orientation tasks in the range 20-200 lux? 
20.	Is the light intensity for normal activities in the range 250-750 lux? 
21.	Is the light intensity for special applications in the range 750-5000 lux? 
Guidelines on Brightness Differences
22.	Are large brightness differences in the visual field avoided? 
23.	Are the brightness differences between task area, close surroundings, and wider surroundings limited? 
Guidelines for the Color of the Light 
24.	Are too cold and too warm colors for indoor lighting avoided?
Improved Lighting
25.	Is the information easily legible? 
26.	Is ambient lighting combined with localized lighting? 
27.	Is daylight also used for ambient lighting? 
28.	Are direct light sources properly screened? 
29.	Are reflections and shadows avoided? 
30.	Is diffuse light used? 
31.	Is flicker from fluorescent tubes avoided: 
Climate  
Guidelines on Thermal Comfort 
32.	Are people able to control the climate themselves? 
33.	Is the air temperature suited to the physical demands of the task? 
34.	Is the air prevented from becoming either too dry or too humid? 
35.	Are hot or cold radiating surfaces avoided? 
36.	Are drafts prevented? 
Guidelines on Heat and Cold 
37.	Is the exposure to extreme hot or cold environments avoided?
38.	Are materials that have to be touched neither too cold nor too hot? 
Climate control 
39.	Are equally heavy tasks grouped in the same room? 
40.	Are the physical demands of the task adjusted to the external climate? 
41.	Is the air velocity optimal? 
42.	Are undesirable radiation prevented? 
43.	Is the time spent in hot or cold environments limited? 
44.	Is special clothing used when spending long periods in hot or cold environments? 
Chemical substances 
Guidelines on Chemical Substances 
45.	Is the concentration of chemical substances in air subject to limits (TLVs or other)? 
46.	Are carcinogenic substances avoided? 
47.	Are peak exposures prevented? 
48.	Is exposure to mixtures of substances prevented? 
49.	Is the concentration of chemical substances as far below the TLVs as possible? 
50.	Are packages of chemicals appropriately labeled? 
Measures at Source 
51.	Can the source be removed? 
52.	Can releases from the source be reduced? 
53.	Can the source be isolated? 
Ventilation 
54.	Are chemical substances extracted directly at the source? 
55.	Is the air exhaust system efficient? 
56.	Has attention been paid to climate at workplaces where exhaust and ventilation are used? 
57.	Are sufficient air changes provided? 
Measures at the Individual Level 
58.	Are organizational measures possible? 
59.	Is personal protective equipment available? 
60.	Are dust masks used only as protection against coarse dust? 
61.	Are protective clothing and gloves available? 
62.	Is attention paid to personal hygiene? 
Use the space below for proposing solutions for your "no" answers.