Emissions of nanoparticles and gaseous material from 3D printer operation

Y Kim, C Yoon, S Ham, J Park, S Kim… - … science & technology, 2015 - ACS Publications
This study evaluated the emissions characteristics of hazardous material during fused
deposition modeling type 3D printing. Particulate and gaseous materials were measured …

Comparison of filtration efficiency and pressure drop in anti-yellow sand masks, quarantine masks, medical masks, general masks, and handkerchiefs

H Jung, JK Kim, S Lee, J Lee, J Kim, P Tsai… - Aerosol and Air Quality …, 2014 - aaqr.org
ABSTRACTParticulate respirators have been used in both general environments and in the
workplace. Despite the existence of certified respirators for workers, no strict regulations …

Indoor air quality differences between urban and rural preschools in Korea

C Yoon, K Lee, D Park - Environmental Science and Pollution Research, 2011 - Springer
Background, aims, and scope Preschool indoor air quality (IAQ) is believed to be different
from elementary school or higher school IAQ and preschool is the first place for social …

[PDF][PDF] Quantity, size distribution, and characteristics of cough-generated aerosol produced by patients with an upper respiratory tract infection

J Lee, D Yoo, S Ryu, S Ham, K Lee, M Yeo… - Aerosol and Air Quality …, 2019 - aaqr.org
It is generally recognized that most nosocomial infections are spread by exposure to
expelled particles at close range (usually within 1 m) or through contact. Although the Korea …

Characterization and control of nanoparticle emission during 3D printing

O Kwon, C Yoon, S Ham, J Park, J Lee… - … science & technology, 2017 - ACS Publications
This study aimed to evaluate particle emission characteristics and to evaluate several
control methods used to reduce particle emissions during three-dimensional (3D) printing …

Determinants of residential indoor and transportation activity times in Korea

W Yang, K Lee, C Yoon, S Yu, K Park… - Journal of exposure …, 2011 - nature.com
Abstract Information on time spent in microenvironments has a critical role for personal
exposure to environmental pollutants. Unlike several large-scale studies in Western …

A comprehensive review of arsenic levels in the semiconductor manufacturing industry

D Park, H Yang, J Jeong, K Ha, S Choi… - Annals of …, 2010 - academic.oup.com
This paper presents a summary of arsenic level statistics from air and wipe samples taken
from studies conducted in fabrication operations. The main objectives of this study were not …

Effect of nozzle temperature on the emission rate of ultrafine particles during 3D printing

H Jeon, J Park, S Kim, K Park, C Yoon - Indoor Air, 2020 - Wiley Online Library
Ultrafine particles and other hazardous materials are emitted during 3D printing, but the
effect of temperature on such particles has not been studied systematically. The aim of this …

Phthalate levels in nursery schools and related factors

W Kim, I Choi, Y Jung, J Lee, S Min… - Environmental science & …, 2013 - ACS Publications
Phthalate esters, which are known endocrine disruptors, are ubiquitously present throughout
indoor environments. Leaching from building materials may be a major source of phthalate …

Spatial–temporal dispersion of aerosolized nanoparticles during the use of consumer spray products and estimates of inhalation exposure

J Park, S Ham, M Jang, J Lee, S Kim… - … science & technology, 2017 - ACS Publications
We evaluated the spatial-temporal dispersion of airborne nanomaterials during the use of
spray consumer products and estimated the level of consumer inhalation exposure. A total of …