Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Assessment of Pollutant Spread from a Building Basement with three
  Ventilation Systems   Ventilation aims at providing a sufficient air renewal for ensuring a good
indoor air quality (IAQ), yet building energy policies are leading to adapting
various ventilation strategies minimising energy losses through air renewal. A
recent IAQ evaluation campaign in French dwellings shows important pollution of
living spaces by VOCs such as formaldehyde, acetaldehyde or hexanal,
particularly in buildings equipped with a garage. Besides, radon emission from
soil is a subject of concern in many countries. Several studies are done to
understand its release mode and deal with the spread of this carcinogen gas.
This paper aims to experimentally assess a contaminant spread from a house
basement using mechanical exhaust and balanced ventilation systems, and natural
ventilation.

7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
2
The categories of this paper are: math
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin