Biofilters: A Natural Ventilation Option for Lowering Energy Costs and Environmental Impact

Running Head: EDUCATION 1
Biofilters by Barbara Crass
Author's Name
Institutional Affiliation

EDUCATION 2
ESOL 120 – Critical Thinking Assignment 2
Patterns of Organization, Structure, and Claims/Evidence
1. Identify the main purpose/central idea of the whole article and write it in one clear
sentence.
The central idea of the whole article is to draw attention to biofilters as natural ventilation
option and how they can lower the concerns regarding the cost and environmental impact
of energy use ( Crass, 2003).
2. Identify the purpose.
The purpose is to explain biofilters, their design and how they work to
keep the indoor air clean and the biofiltration system is beneficial both economically and
environmentally.
3. Analyze the entire article and identify all structural elements (patterns of
organization). Mention the paragraph number, your evaluation of the effectiveness,
and your explanation. See the first one as an example.
/6
Pattern of
organization
Paragraph(s) Evaluation Explanation – Why or why not?
Contrast 2 Somewhat
effective
The functioning and cost of outdoor
intakes are not provided. So, we don’t
know how much better biofilters are.
Chronological 6 and 8 Somewhat
effective
The oldest existing example of biofilters is
listed in the Canada Life building form the
nineties. However, recent funding for
TRCA project is listed but with no clear
date or year.
Spatial 10, 14 and 17 Somewhat
effective
TCA’s office space utilization is given in
terms of project costs and duct work and
how the biofilters would be connected to