Well Building Standard & Workplace Air quality - Chris Birch

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Hilson Moran is a leading building services and environmental engineering consultancy in the UK with over 40 years of experience. They have adopted the WELL Building Standard to improve the health and wellbeing of occupants in the buildings they work in. The WELL standard addresses seven concepts related to health and wellbeing through buildings - air, water, nourishment, light, fitness, comfort and mind. For air quality, the standard has preconditions around ventilation rates, VOC reduction and air quality standards, and optimisations include air monitoring and flush systems. Hilson Moran has implemented air monitoring in their offices which has helped identify issues like electrical failures impacting ventilation.

Environment

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The WELL Building Standard & Workplace Air Quality
Chris Birch
Director of Sustainability - Hilson Moran

ABSENTEEISM
Absenteeism costs UK
businesses
£30 billion
per year!

WORK & HEALTH
41% of UK employees
say their work environment
is having a negative effect
on their health and
wellbeing.

TALENT ATTRACTION & RETENTION
34% of potential
employees in the UK say
that health and wellbeing
are the most important
factors in the workplace.

WHY HILSON MORAN DID WELL?
Typical Business Operating Costs
We invested in our greatest asset – our staff!

• International WELL Building
Institute™ (IWBI™).
• Built through 7 years of
research.
• A nutritional table for your
building.
WHAT IS WELL?

• Total of 105 features:
– 100 standard
– 5 innovation
• Each feature is either:
– A Precondition
– An Optimisation
WELL STRUCTURE
Certification
Level
Preconditions
achieved
Optimisations
achieved
Silver
All 0%
Gold
All 40%
Platinum
All 80%

WELL: THE 7 CONCEPTS
Air
Water
Nourishment
LightFitness
Comfort
Mind
Health &
Wellbeing

CONCEPTS: AIR
Example Preconditions:
Air quality standards
Ventilation effectiveness
VOC reduction
Construction pollution management
Example Optimisations:
Air flush
Air quality monitoring
Cleanable environment

PRE-CONDITION: Air Quality Standards
• Formaldehyde levels less than 27 ppb.
• Total volatile organic compounds less than
500 μg/m³.
• Carbon monoxide less than 9 ppm.
• PM₂.₅ less than 15 μg/m³.
• PM₁₀ less than 50 μg/m³.
• Ozone less than 51 ppb.
• USGBC / EPA
standards
• Spot checked on the
day

PRE-CONDITION: Air Quality Standards
• USGBC / EPA standards
• Spot checked on the day

PRE-CONDITION: Ventilation effectiveness
• Ventilation rates comply with all
requirements set in ASHRAE 62.1-2013
(Ventilation Rate Procedure)
OR
• If naturally ventilated demonstrate that
ambient air quality within 1.6 km of the
building is compliant with either the U.S.
EPA's and WELL air quality standards
AND
• If densely occupied install CO2 controlled
HVAC
• All a bit
American

PRE-CONDITION: VOC Reduction
• VOC limits on newly applied interior paints
and coatings, insulation, adhesives,
flooring, and 95% (by cost) of all furniture.
£

CONCEPTS: AIR MONITORING
• Inexpensive
• Cloud based
interface
• CO2, PM2.5 and
physical parameters
• Inexpensive
• Cloud based
interface and display
capability
• CO2, NO2, Ozone,
PM2.5 and physical
parameters
• Expensive
• “Ugly”
• Proven
• performance and
accuracy against
reference equipment
• Wide range of
pollutants

CONCEPTS: AIR MONITORING
Chester Road offices – up to 1500ppm

CONCEPTS: AIR MONITORING
An incident…..
• Monitors alerted us to high CO2
concentrations in the office
• Found to be caused by an electrical trip of
fresh air handling unit
• Without the monitors we would not have
know about the issue

WALKING THE TALK – RESULTS OF POST OCCUPANCY SURVEY

AWARDS
BCO Regional Innovation award 2018 National Air Quality Awards – Indoor air
quality initiative of the year 2018
WELL Gold

Chris Birch
cbirch@hilsonmoran.com
Tel: 00(44) 7880705140

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