Indoor air quality in the sustainability assessment through en16309

indoor air quality health & comfort aspect in the social performance assessment of buildings

EN16309 (standardisation by CEN TC350 WG5)

EN16309 SUSTAINABILITY OF CONSTRUCTION WORKS — ASSESSMENT OF SOCIAL

PERFORMANCE OF BUILDINGS — METHODOLOGY

Indoor Air Quality – a social performance aspect

How and where is this taken into account

in the sustainability assessment of buildings ?

Sustainability assessment

• Prerequisite:

compliance to meet present and future needs on functional and

technical demands

• Based on 3 dimensions:

• Based on the building LIFE CYCLE: 3 life cycle stages

– `Before use stage`, `Use stage` and `After use stage`

See next slide

CEN TC350 standardisation

ECO SOC ECON

Technical Design Funktional Design

EuroCodes

CEN TC350 Standards

for works

CEN TC350

Standards only quantify

aspects and impacts

4

Sustainability

A prerequisite for sustainability are the 6 Basic Requirements for Construction Works

• Without meeting the functional needs there is no sustainability

• Without meeting the technical needs there is no sustainability

CPR

305/2011

D

Benefits and loads beyond the

system boundary

B2 B3 B4 B5

B 6 Operational Energy use

A4

A5 B 7 Operational Water use

C1

C2

C3

C4

BUILDING LIFE CYCLE INFORMATION

SUPPLEMENTARY INFORMATION

BEYOND

THE BUILDING LIFE CYCLE

A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION

PROCESSUSE STAGE END OF LIFE STAGE

Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent

BUILDING ASSESSMENT INFORMATION

5

After being disposed the construction products or materials might have a future value in another

life cycle

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


6

LIFE CYCLE STAGE:

USE

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


7

LIFE CYCLE STAGE:

USE LIFE CYCLE STAGE:

BEFORE USE

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


8

LIFE CYCLE STAGE:


BEFORE USE LIFE CYCLE STAGE:

AFTER USE

Assessment ,Information and Scenarios

• The assessment and the information is structured and presented in

INFORMATION MODULES

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


10

LIFE CYCLE STAGE:



AFTER USE

Ass

essm

ent

&

In

form

atio

n m

od

ule

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


11

LIFE CYCLE STAGE:



AFTER USE

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


12

LIFE CYCLE STAGE:



AFTER USE

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


13

LIFE CYCLE STAGE:



AFTER USE

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


14

LIFE CYCLE STAGE:



AFTER USE

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


15

LIFE CYCLE STAGE:



AFTER USE

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

Info

rmat

ion

mo

du

le

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

Info

rmat

ion

mo

du

le

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


16

LIFE CYCLE STAGE:



AFTER USE

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

Info

rmat

ion

mo

du

le

Ass

essm

ent

&

In

form

atio

n m

od

ule

Ass

essm

ent

&

Info

rmat

ion

mo

du

le

After being disposed the construction products or materials might have a future value in another

life cycle

Assessment ,Information and Scenarios

• The assessment and the information is structured and presented in

INFORMATION MODULES

• Scenarios are ESSENTIAL specifications to each information module

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1

Use

Main

tenance

Repair

Repla

cem

ent


18

A scenario to each of the life cycle stages –

A scenario to each of the information modules

A scenario for info beyond the

product/building life cycle stage

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1U

se

Main

tenance

Repair

Repla

cem

ent


EN16309

ONLY PROVIDES THE METHODOLOGY FOR

THE ASSESSMENT OF THE USE STAGE

EN16309 = 1st. Generation of the standard. The conditions, for making a European standard on the social performance assessment, could not be met yet for taking into account all life cycle stages

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1U

se

Main

tenance

Repair

Repla

cem

ent


SOCIAL PERFORMANCE

USE STAGE

D


system boundary

B2 B3 B4 B5


A4


C1

C2

C3

C4



BEYOND


A1 - 3 A4 - 5 B1 - 7 C1 - 4

PRODUCT

STAGE

CONSTRUCTION


Raw

Mate

rial S

upply

Tra

nsport

Manufa

ctu

ring

Tra

nsport

Constr

uction -

Insta

llation p

rocess

Deconstr

uction

Tra

nsport

Waste

pro

cessin

g for

reuse,

recovery

or

and r

ecyclin

g

Dis

posal

Reuse -

Recovery -

Recycling -

potential

A1-A3R

efu

rbis

hm

ent

B1U

se

Main

tenance

Repair

Repla

cem

ent


SOCIAL PERFORMANCE

USE STAGE

7 information modules

Info Module USE is most important but can only function with maintenance, repair, etc.

Step 4 Evaluating aspects

and indicators Checklist

clause 7, 8

Annex B

Step 1

Step 2

Step 3

Identify Purpose of

the Assessment

Goal

Intended Use clause 4

Specification of the

Object of

Assessment

Functional Equivalent

Reference Study Period

System Boundary

Object of Assessment

clause 5

Scenarios for the

Building Use Stage Object of Assessment – Time related characteristics

Scenarios for the information modules B1 and B2 – B7 clause 6

health comfort

accessibility

safety security

adaptability

impact neighbourhood

building-related aspects for the fabric

health comfort

safety security


user- and control system-related aspects relevant for the operation of the building

social building-performance indicators

23


24

Accessibility

Accessibility for people with specific needs

Access to building services

Thermal characteristics

Health & Comfort

Characteristics of visual comfort

Acoustic characteristics

Characteristics of indoor air quality

Spatial characteristics

Adaptability

Safety and Security

Resistance to climate change

Accidental actions (earthquake, explosions,

fire and traffic impacts

Personal safety and security against intruders

and vandalism

Security against interruptions of utility supply

Impact on neighbourhood

Noise

Glare/overshadowing

Emissions

Shocks / vibrations


25

Thermal comfort

Health & Comfort

Visual comfort

Indoor air quality

Safety and Security

Security against intruders and vandalism

Impact on neighbourhood

Emissions

Step 4 Evaluating aspects

and indicators Checklist

clause 7, 8

Annex B

Step 1

Step 2

Step 3

Identify Purpose of

the Assessment

Goal

Intended Use clause 4

Specification of the

Object of

Assessment

Functional Equivalent

Reference Study Period

System Boundary

Object of Assessment

clause 5

Scenarios for the

Building Use Stage Object of Assessment – Time related characteristics

Scenarios for the information modules B1 and B2 – B7 clause 6

health comfort

accessibility

safety security

adaptability



health comfort

safety security



Follow the methodology in clause

7.2-7.7

Is there a regional,

national or European

requirement

or

a client requirement

Is the aspect relevant for

the design of the object of

assessment?

Start

assessment

of aspect

stop

assessment of

aspect

is the indicator

assessed ?

Specify the minimum requirement

and/or give details of client’s

requirement

Describe

measures

that have

been taken

Justify

INAJustify

Report obtained

performance

and references

Report

INA

Mark as

NR

(not

relevant)

Have measures

been taken

exceeding the

requirement ?

yes

Follow the methodology in clause

7.2-7.7

yes

yes

yes

no

no

no

Report obtained

performance

and references

Report

for all aspects- all indicators

no

Report obtained

performance

and references

Describe

measures

that have

been taken

Guided by a checklist Evaluating indicators per information module B1-B7

social building-performance indicators

26

Annex B - Table for Module B 1: checklist on the social indicators for the information module

"Use stage"

Module B1 a b c d e f

Clause

7.2 – 7.7

indicators for the aspect related to

social performance as listed in Table 1 in clause 7.1

the indicators 1-16 are building-related aspects for the fabric

the indicators 17-21 are user- and control system-related aspects

relevant for the operation of the building

Is the aspect

relevant for the design of

the object of assessment ?

(yes/no)

Is there a national-

regional or European

requirement applicable ?

(yes/no)

If yes - give

reference to the relevant regulation)

Specify the minimum

requirement according the prevailing

regulation or if not regulated give details

of any requirements made in the clients

brief

Have measures

been taken for exceeding the

requirements given in c)

yes/no)

Give value for indicator or

briefly specify measures taken to achieve the

stated performance ?

Give Reference to

relevant documentation to support e)

Aspect Accessibility, see 7.2

1. Accessibility for people with specific needs (see 7.2.2)

2. Access to building services see 7.2.3

Aspect Adaptability, see 7.3

3. Adaptability

Aspect Health and comfort, see 7.4

4. Thermal characteristics, see 7.4.2.1

5. Characteristics of indoor air quality, see 7.4.3.1

6. Acoustic characteristics,

see 7.4.4

7. Characteristics of visual comfort,

see 7.4.5.1

8. Spatial characteristics,

see 7.4.6


Clause

7.2 – 7.7






Is the aspect



(yes/no)




(yes/no)

If yes - give


Specify the minimum




brief

Have measures



yes/no)




Give Reference to






3. Adaptability





see 7.4.4


see 7.4.5.1


see 7.4.6


"Use stage" Module B1 a b c d e f

Clause

7.2 – 7.7






Is the aspect



(yes/no)




(yes/no)

If yes - give


Specify the minimum




brief

Have measures



yes/no)




Give Reference to






3. Adaptability





see 7.4.4


see 7.4.5.1


see 7.4.6

Impacts on neighbourhood, see 7.5

9. Noise, see 7.5.2

10. Emissions, see 7.5.3


Clause

7.2 – 7.7






Is the aspect



(yes/no)




(yes/no)

If yes - give


Specify the minimum




brief

Have measures



yes/no)




Give Reference to






3. Adaptability





see 7.4.4


see 7.4.5.1


see 7.4.6


"Use stage"





3. Adaptability




6. Acoustic characteristics, see 7.4.4


see 7.4.5.1


see 7.4.6


9. Noise,

see 7.5.2


11. Glare/overshadowing, see 7.5.4

12. shocks / vibrations, see 7.5.5

Aspect Safety and security, see 7.7

13. Resistance to climate change, see

7.7.2

14. Accidental actions (earthquake,

explosions, fire and traffic impacts), see 7.7.3

15. Personal safety and security against intruders and vandalism,

see 7.7.4

16. Security against interruptions of utility supply, see 7.7.5


17. Thermal comfort, see 7.4.2.2

18. Indoor air quality, see 7.4.3.2

19. Visual comfort,

see 7.4.5.2


20. Emissions,

see 7.5.3.1


Clause

7.2 – 7.7






Is the aspect



(yes/no)




(yes/no)

If yes - give


Specify the minimum




brief

Have measures



yes/no)




Give Reference to






3. Adaptability





see 7.4.4


see 7.4.5.1


see 7.4.6


9. Noise, see 7.5.2



Clause

7.2 – 7.7






Is the aspect



(yes/no)




(yes/no)

If yes - give


Specify the minimum




brief

Have measures



yes/no)




Give Reference to






3. Adaptability





see 7.4.4


see 7.4.5.1


see 7.4.6


"Use stage"


Clause

7.2 – 7.7






Is the aspect



(yes/no)




(yes/no)

If yes - give


Specify the minimum




brief

Have measures



yes/no)




Give Reference to






3. Adaptability





see 7.4.4


see 7.4.5.1


see 7.4.6


9. Noise, see 7.5.2



Clause

7.2 – 7.7






Is the aspect



(yes/no)




(yes/no)

If yes - give


Specify the minimum




brief

Have measures



yes/no)




Give Reference to






3. Adaptability





see 7.4.4


see 7.4.5.1


see 7.4.6


"Use stage"





3. Adaptability






see 7.4.5.1


see 7.4.6


9. Noise,

see 7.5.2






7.7.2




see 7.7.4





19. Visual comfort,

see 7.4.5.2


20. Emissions,

see 7.5.3.1


Clause

7.2 – 7.7






Is the aspect



(yes/no)




(yes/no)

If yes - give


Specify the minimum




brief

Have measures



yes/no)




Give Reference to






3. Adaptability





see 7.4.4


see 7.4.5.1


see 7.4.6


9. Noise, see 7.5.2


INDOOR AIR QUALITY

7.4.3.1. Building fabric-related characteristics of indoor air quality

The building fabric-aspect of indoor air quality depends on a wide range of factors: e.g. .............. The indoor air quality can also depend on the presence of other products (furniture, fixtures and fittings, floor coverings etc.) that are not building-related.

For the assessment of indoor air quality the following indicators shall be assessed:

• Substances and particles which are regulated and/or stated in the clients brief. Additional substances and particles can be assessed where appropriate.

• Concentration of Carbon Dioxide (CO2) above the external ambient CO2 concentration [ppm] according to EN 15251;

• Ventilation rate in accordance to EN 15251 [e.g. l/s/person or l/s/m3];

• Risk of mould growth based on internal surface temperature and relative humidity according to EN-ISO 13788;


Clause

7.2 – 7.7






Is the aspect



(yes/no)




(yes/no)

If yes - give


Specify the minimum




brief

Have measures



yes/no)




Give Reference to






3. Adaptability





see 7.4.4


see 7.4.5.1


see 7.4.6


"Use stage"





3. Adaptability






see 7.4.5.1


see 7.4.6


9. Noise,

see 7.5.2






7.7.2




see 7.7.4





19. Visual comfort,

see 7.4.5.2


20. Emissions,

see 7.5.3.1


Clause

7.2 – 7.7






Is the aspect



(yes/no)




(yes/no)

If yes - give


Specify the minimum




brief

Have measures



yes/no)




Give Reference to






3. Adaptability





see 7.4.4


see 7.4.5.1


see 7.4.6


9. Noise, see 7.5.2


INDOOR AIR QUALITY

7.4.3.2 User and control system-related aspects of indoor air quality

The level of controllability of the indoor air quality per room and of the building shall be

assessed according to the following measures:

• Is there control of ventilation at a building level? [yes/no];

• Is there control of ventilation by users with automatic control and/or with manual

override by users? [yes/no].

• Is there measurement and display of CO2-level in individual rooms ? [yes/no];

• Is there measurement and display of humidity in the building

and/or individual rooms ? [yes/no];

For each of the above indicators the selected basis of design shall be briefly stated

together with reference to supporting documents.

42

Thank you !

Chris Hamans [email protected]

http://www.hamans.com

mailto:[email protected]

mailto:http://www.hamans.com

Indoor air quality in the sustainability assessment through en16309

Technology

Transcript of Indoor air quality in the sustainability assessment through en16309