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MonitorizaĆ§Ć£o da qualidade do ar interior em salas limpas: um estudo comparativo em ambientes hospitalares
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Abstract(s)
Este estĆ”gio curricular de tĆ©rmino do mestrado em Engenharia BiolĆ³gica e QuĆmica foi
desenvolvido nas instalaƧƵes da ATM - AssistĆŖncia Total em ManutenĆ§Ć£o S.A. em Lisboa,
nomeadamente no LabEns ā LaboratĆ³rio de Ensaios da ATM.
O objetivo desta tese foi a comparaĆ§Ć£o dos resultados de vĆ”rios ensaios diferentes realizados
no Ć¢mbito da Qualidade do ar Interior (QAI) conforme a legislaĆ§Ć£o portuguesa (Portaria 138-
G/2021) e ISO 7730 para os parĆ¢metros de conforto tĆ©rmico, e ensaios realizados no Ć¢mbito
das Salas Limpas conforme a Norma ISO 14644, e desta forma procurar correlaƧƵes entre
parĆ¢metros fĆsico-quĆmicos e microbiolĆ³gicos medidos nestes ensaios.
TambĆ©m foi objetivo encontrar uma correlaĆ§Ć£o entre parĆ¢metros dos ensaios da QAI ou Salas
Limpas realizados em salas com caracterĆsticas diferentes.
Na hipĆ³tese de ser encontrada uma correlaĆ§Ć£o entre parĆ¢metros dos ensaios QAI com
parĆ¢metros dos ensaios das Salas Limpas, por exemplo entre parĆ¢metros fĆsico-quĆmicos de
um ensaio de Salas Limpas e parĆ¢metros microbiolĆ³gicos de ensaios QAI tornar-se-ia
possĆvel, na interpretaĆ§Ć£o dos resultados dos ensaios, acrescentar informaĆ§Ć£o para fornecer
aos clientes sobre outros parĆ¢metros nĆ£o medidos nesses ensaios (mas que este estudo
demonstra com elevada probabilidade correlaĆ§Ć£o). Desta forma pode-se orientar os clientes
para a necessidade de outros ensaios complementares ou alertar para a probabilidade de
existĆŖncia de algum risco correlacionado com os parĆ¢metros medidos nesse ensaio. Isto pode
constituir uma mais-valia para o cliente, principalmente a nĆvel da seguranƧa.
Os ensaios realizados foram realizados ao longo do estƔgio, em 32 Salas Limpas de 11
serviƧos hospitalares distintos e 3 ambientes hospitalares diferentes.
Foi encontrada a correlaĆ§Ć£o entre parĆ¢metros de ensaios QAI, nomeadamente a quantidade
de bactĆ©rias e fungos presentes no ar das salas, com parĆ¢metros da norma de ISO 14644
das mesmas salas. Foi inferido que hĆ” uma maior a tendĆŖncia de desenvolvimento destes
microrganismos em salas com classificaĆ§Ć£o ISO mais altas (consideradas assim menos
limpas). Foi igualmente encontrada uma correlaĆ§Ć£o entre parĆ¢metros de ensaios ISO 14644.
Concluiu-se que as salas com as ISO mais baixas, isto Ć© com ar mais limpo de contaminantes,
sĆ£o as que possuem o fluxo de ar unidirecional, conforme expectĆ”vel.
Na generalidade, os resultados obtidos, estes encontravam-se dentro dos limites impostos
pela legislaĆ§Ć£o aplicĆ”vel excetuando-se algumas salas com os COVT e formaldeĆdo um pouco
altos.
This curricular internship to complete the master's degree in Biological and Chemical Engineering was developed at the facilities of ATM - AssistĆŖncia Total em ManutenĆ§Ć£o S.A. in Lisbon, namely at LabEns ā ATM Testing Laboratory. The objective of this thesis was to compare the results of several different tests carried out within the scope of Indoor Air Quality (IAQ) in accordance with the Portuguese legislation (Ordinance 138-G/2021) and ISO 7730 for thermal comfort parameters, and tests carried out in scope of Clean Rooms in accordance with ISO 14644, and thus seek correlations between physical-chemical and microbiological parameters measured in these tests. The objective was also to find a correlation between parameters of the IAQ or Clean Room tests carried out in rooms with different characteristics. If a correlation is found between parameters of the IAQ tests with parameters of the Clean Room tests, for example between physicochemical parameters and a Clean Room test and microbiological parameters of IAQ tests, it would become possible to interpret the results. In this scenario, clients could be guided towards the need for other complementary tests or alerted for the probability of the existence of some risk correlated with the parameters measured in this test. This can be an added value for the client, especially in terms of safety. The tests conducted were carried out in 32 Clean Rooms from 11 different hospital services, and 3 hospital environments. A correlation was found between IAQ test parameters, specifically the amount of bacteria and fungi present in the air of the rooms, and parameters of ISO 14644 standard for the same rooms. It was inferred that there is a greater tendency for the development of these microorganisms in rooms with higher ISO classifications (considered less clean). A correlation was also found between ISO 14644 test parameters. It was concluded that rooms with lower ISO classifications, i.e., with cleaner air, free of contaminants, are those with the expected unidirectional air flow. In general, the results obtained were within the limits imposed by applicable legislation, except for the rooms with slightly higher than legislated, for VOCs and formaldehyde.
This curricular internship to complete the master's degree in Biological and Chemical Engineering was developed at the facilities of ATM - AssistĆŖncia Total em ManutenĆ§Ć£o S.A. in Lisbon, namely at LabEns ā ATM Testing Laboratory. The objective of this thesis was to compare the results of several different tests carried out within the scope of Indoor Air Quality (IAQ) in accordance with the Portuguese legislation (Ordinance 138-G/2021) and ISO 7730 for thermal comfort parameters, and tests carried out in scope of Clean Rooms in accordance with ISO 14644, and thus seek correlations between physical-chemical and microbiological parameters measured in these tests. The objective was also to find a correlation between parameters of the IAQ or Clean Room tests carried out in rooms with different characteristics. If a correlation is found between parameters of the IAQ tests with parameters of the Clean Room tests, for example between physicochemical parameters and a Clean Room test and microbiological parameters of IAQ tests, it would become possible to interpret the results. In this scenario, clients could be guided towards the need for other complementary tests or alerted for the probability of the existence of some risk correlated with the parameters measured in this test. This can be an added value for the client, especially in terms of safety. The tests conducted were carried out in 32 Clean Rooms from 11 different hospital services, and 3 hospital environments. A correlation was found between IAQ test parameters, specifically the amount of bacteria and fungi present in the air of the rooms, and parameters of ISO 14644 standard for the same rooms. It was inferred that there is a greater tendency for the development of these microorganisms in rooms with higher ISO classifications (considered less clean). A correlation was also found between ISO 14644 test parameters. It was concluded that rooms with lower ISO classifications, i.e., with cleaner air, free of contaminants, are those with the expected unidirectional air flow. In general, the results obtained were within the limits imposed by applicable legislation, except for the rooms with slightly higher than legislated, for VOCs and formaldehyde.
Description
Keywords
Qualidade do Ar Interior ISO 14644 Fluxo de ar unidirecional Salas Limpas Portaria 138-G/2021 Indoor Air Quality Unidirectional airflow Clean Rooms Ordinance 138- G/2021