Indoor environmental quality (IEQ) is one of the most important factors that affect the residents of the indoor locations. CO2, CO and thermal comfort is the most famous parameters, and IUG is considered as a leader in the pursuit of providing satisfaction for workers. This study aims to identify the impact of the elements of indoor environmental quality on the employees of IUG and to compare these elements with the international recognized standards. This study was conducted on 22 rooms within IUG, where employees spend more 7 hours in their offices during three seasons: winter, and summer, in two stages, the first stage: field work, by measuring the concentration of CO2, CO, Humidity and temperature by using the relevant devices, the second stage: designing a questionnaire for exploring the extent of the impact of The study shows the following results: 80% of IUG employees are satisfied with thermal comfort and the concentration of CO is appropriate and less than the standards (9ppm). CO2 is high in the rooms that rely on centralized air conditioning, and there is a negative relationship between the ventilation ratio and the concentration of CO2. There is a significant statistical difference between CO2 measurements according to seasons these factors on the employees working indoors. The university employees felt the symptoms of health issues related to carbon dioxide concentration. The study concluded that CO2, CO concentrations are varied inside the rooms of the university and the environmental awareness of these factors and their effect need to be enforced

1. BY
Khalil MEl Khateeb, Zeyad HAbu Heen., and Wesam Al
Madhoun
BY
Khalil MEl Khateeb, Zeyad HAbu Heen., and Wesam Al
Madhoun
1

2.  People spend an estimated 90% of
their time indoors.
2
 Indoor air pollution has been ranked
as one of the top four environmental
risks

3. Research Justifications
 IUG is located between several streets that
characterized of the traffic crowded in the city
 The interruption of electric current made the
university to depend heavily on electrical generators
3

4. Checking the impact of these elements on the
employees
AIM AND OBJECTIVES
4
Determining the levels of )CO), )CO2( inside the
IUG rooms.
Assessment of indoor thermal comfort.

5. Methodology
 Data measurements, were connected with the (IUG)
room's at different floor at different time (8:30 am,
11:30 pm, 2:30 pm) In the winter and summer
Questionnaire design, to find out the extent of indoor
environmental impacts on the employees
5

6. Indoor Air Quality Monitor Model 2211
6

7. Result and Analysis
7

8. CO2
Concentration during a working day in winter and summer
Winter Summer
poor 40.91 0.5
Good 22.7 13.46
excellent 36.7 81.81
8

9. 9
Correlations
1 -.963**
.000
22 22
-.963** 1
.000
22 22
Pearson Correlation
Sig. (2-tailed)
N
Pearson Correlation
Sig. (2-tailed)
N
CO2
V.R
CO2 V.R
Correlation is significant at the 0.01 level
(2-tailed).
**.
Statistical correlation between the CO2 concentration and
ventilation ratio

10. Buildings
WestG
Stud.Af
Secr.5.E
Secr.3.N
Secr.3.E
Secr.1.E
NorthG
Med
Lib4
Lib2
Lib1
IT.5
IT.3
IT.1
Finance
EastG
Csced.5
Csced.3
Csced.1
Cafeteri
Cafkitc
Ad.Reg
CO2(ppm)
1,400.00
1,200.00
1,000.00
800.00
600.00
400.00
200.00
0.00
V.R(L/s)
12.50
10.00
7.50
5.00
2.50
0.00
Buildings
WestG
Stud.Af
Secr.5.E
Secr.3.N
Secr.3.E
Secr.1.E
NorthG
Med
Lib4
Lib2
Lib1
IT.5
IT.3
IT.1
Finance
EastG
Csced.5
Csced.3
Csced.1
Cafeteri
Cafkitc
Ad.Reg
CO2
2,000.00
1,500.00
1,000.00
500.00
0.00
V.R
8.00
6.00
4.00
2.00
0.00
summerwinter
10

11. Means and Test values for CO2 symptoms among occupants11

12. CO Concentration during a working day in winter and summer12

13. Means and Test values for CO symptoms among occupants
13

14. Temperatures Humidity14

15. Means and Test values for thermal comfort symptoms among
occupants15

16. CONCLUSION
The following conclusions were drawn from the
results of this study:
 80% of the IUG employees feel with
thermal comfort inside their office in winter
and summer.
There is a negative correlation between
CO2 concentration and ventilation rate.
16

17. There are statistically differences between
CO2 concentration according to season, and
the best measurements were in summer where
the average is 602.86 ppm.
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Respiration is an essential source for CO2

18. The offices that depend on air conditioning
have the highest CO2 concentration than others
which use natural ventilation methods.
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There is health effects associated with
high CO2.

19. RECOMMENDATIONS
 Regular and periodical monitoring of CO2
and CO gases should be done.
 CO2 concentration should be adopted to
check for any IAQ problems related to
ventilation system.
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20.  Providing Detector equipment of CO2 gas
in the departments in whichCO2 measurements
exceeds the allowable extent, in order to
prevent exposing the employees to high and
dangerous proportion.
20

21.  To reduce using generators and dependence
on clean energy or transmitting them to a place
away from the university buildings to avoid
their gases .
 Airing rooms and renewing air in the
morning before initiating work inside them
to get rid of accumulated gases during night.
21

22. Thank you
for your attention
Thank you
for your attention
22