Finding · as stated by the study, recorded by Coridum · status verified-machine
Finding F-1222
“Formaldehyde followed a continual decrease in indoor concentrations with passing time during the entire experimental duration, regardless of indoor plant placement.”
Structure
- Factor
- Formaldehyde (CH₂O)
- Intervention
- Indoor plants (phytoremediation)
- Population
- asthmatics and their households
- Setting
- home, KR
- Study design
- quasi-experimental study in the homes of asthmatics in Korea over two observation terms: households of continuation kept the indoor plants for both terms, households of withdrawal kept them for the first term and passed the second without any plants; formaldehyde and benzene, toluene, ethylbenzene and xylene were measured indoors, with peak expiratory flow rate twice a day and an asthma-specific quality of life questionnaire, compared with the Mann-Whitney test (class 3)
- Caveat
- a stated direction without a number; the sibling rows carry the concentrations of both groups
A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.