Lars Ekberg

ORCID: 0000-0002-6790-6638
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About
Contact & Profiles
Research Areas
  • Air Quality and Health Impacts
  • Building Energy and Comfort Optimization
  • Indoor Air Quality and Microbial Exposure
  • Lung Cancer Diagnosis and Treatment
  • Air Quality Monitoring and Forecasting
  • Aerosol Filtration and Electrostatic Precipitation
  • Vehicle emissions and performance
  • Advanced Radiotherapy Techniques
  • Infection Control and Ventilation
  • Lung Cancer Treatments and Mutations
  • Noise Effects and Management
  • Wind and Air Flow Studies
  • Head and Neck Cancer Studies
  • Sustainable Building Design and Assessment
  • Medical Imaging Techniques and Applications
  • Lung Cancer Research Studies
  • Aerodynamics and Fluid Dynamics Research
  • Allergic Rhinitis and Sensitization
  • Social and Educational Sciences
  • Urban Heat Island Mitigation
  • Radiation Therapy and Dosimetry
  • BIM and Construction Integration
  • Climate Change and Health Impacts
  • Management of metastatic bone disease
  • Odor and Emission Control Technologies

Chalmers University of Technology
2005-2023

CIT Energy Management (Sweden)
2005-2023

Lund University
1994-2016

Skåne University Hospital
2011-2016

Malmö University
2009-2012

Sahlgrenska University Hospital
2009

Aarhus University Hospital
2009

Linköping University Hospital
2009

Uppsala University Hospital
2009

Karolinska University Hospital
2009

The impact of stereotactic body radiotherapy (SBRT) on 3-year progression-free survival medically inoperable patients with stage I non-small-cell lung cancer (NSCLC) was analyzed in a prospective phase II study.Fifty-seven T1NOMO (70%) and T2N0M0 (30%) were included between August 2003 September 2005 at seven different centers Sweden, Norway, Denmark observed up to 36 months. SBRT delivered 15 Gy times three the 67% isodose planning target volume.Progression-free 3 years 52%. Overall-...

10.1200/jco.2008.21.5681 article EN Journal of Clinical Oncology 2009-05-05

Humans and their activities are known to generate considerable amounts of particulate matter indoors. Some the cooking, smoking cleaning. In this study 13 different particle sources were for first time examined in a 32 m3 full-scale chamber with an air change rate 1.7 +/- 0.1/h. Two instruments, condensation counter (CPC) optical (OPC) used quantitatively determine ultrafine fine emissions, respectively. The CPC measures particles from 0.02 microm larger than 1.0 microm. OPC was adjusted...

10.1111/j.1600-0668.2005.00332.x article EN Indoor Air 2005-02-28

We reviewed results of SBRT treatment 138 patients with medically inoperable stage I NSCLC treated during 1996–2003 at five different centres in Sweden and Denmark. Mean age was 74 years (range 56–90) 69 men 72 women. delivered using a 3D conformal multifield technique stereotactic body frame. Doses were 30–48 Gy (65% isodose the periphery planning target volume, PTV) 2–4 fractions. Equivalent dose 2 fractions (EQD2) range 50–100 Gy. gross tumour volume (GTV) 39 cm3 (2–436), 101 (11–719)....

10.1080/02841860600904862 article EN Acta Oncologica 2006-01-01

Many people spend most of their time in an indoor environment. A positive relationship exists between environmental quality and the health, wellbeing, productivity occupants buildings. The environment is affected by pollutants, such as gases particles. Pollutants can be removed from various ways. Air-cleaning devices are commonly marketed benefiting removal air pollutants and, consequently, improving quality. Depending on type cleaning technology, cleaners may generate undesired toxic...

10.3390/su12218774 article EN Sustainability 2020-10-22

Previous research has demonstrated that unipolar ionization can enhance the filter performance to collect airborne particles, aeroallergens, and microorganisms, without affecting pressure drop. However, there is a lack of on long-term system as well influence environmental operational parameters. In this paper, both field laboratory tests were carried out evaluate particle collection efficiency synthetic class M6 with ionization. The effect air velocity, temperature, relative humidity,...

10.1021/acs.est.5b00974 article EN Environmental Science & Technology 2015-04-29

The present study aimed at investigating the effects of ventilation strategies on indoor air quality (IAQ) in schools. Measurements thermal environment and IAQ were performed over 5 school days 45 primary classrooms Gothenburg, Sweden, grouped into three categories according to their system: category A) natural or exhaust ventilation, automated window opening; B) balanced mechanical systems with constant volume (CAV) C) variable (VAV). equally well respect temperature relative humidity...

10.1016/j.buildenv.2022.109744 article EN cc-by Building and Environment 2022-10-28

This study aimed to better understand and quantify the influence of ventilation strategies on occupant-related indoor air chemistry. The oxidation human skin oil constituents was studied in a continuously ventilated climate chamber at two exchange rates (1 h-1 3 ) initial ozone mixing ratios (30 60 ppb). Additional measurements were performed investigate effect intermittent ("off" followed by "on"). Soiled t-shirts used simulate presence occupants. A time-of-flight-chemical ionization mass...

10.1111/ina.12594 article EN Indoor Air 2019-08-17

The objective of this study was to compare two real-time condensation particle counters for measurement number concentrations ultrafine particles (UFPs). comparison is based on the data from side-by-side measurements conducted in several locations, both indoors and outdoors. CPC 3007 P-Trak™ 8525 manufactured by TSI (instruments A B, respectively) were used simultaneously. They measure sizes 0.01 greater than 1 μ m 0.02 m, respectively. results reveal a good correlation between instruments....

10.1080/02786820490462200 article EN Aerosol Science and Technology 2004-05-01

The aim of this study was to demonstrate a correlation between the measurement emission rates volatile organic compounds (VOCs) in three different climate chambers. In order achieve aim, early state process chambers investigated and effects some important factors on from paint were determined. paper presents results measurements For study, 1-m3 chamber, field laboratory cell (FLEC), chamber for investigation materials pollution air quality (CLIMPAQ) used. airflow surface area selected so...

10.1034/j.1600-0668.2003.00146.x article EN Indoor Air 2003-05-19

Background. In SBRT of lung tumours no established relationship between dose-volume parameters and the incidence toxicity is found. The aim this study to compare LQ model universal survival curve (USC) calculate biologically equivalent doses in see if will improve knowledge on relationship. Material methods. Toxicity data radiation pneumonitis grade 2 or more (RP2+) from 57 patients were used, 10.5% diagnosed with RP2+. DVHs corrected for fractionation (LQ USC) analysed Lyman- Kutcher-Burman...

10.3109/0284186x.2010.543695 article EN Acta Oncologica 2011-01-04

Neither the European standard nor US for classification of intermediate class filters comprises testing filter performance with respect to ultrafine particles (UFPs) or most penetrating size (MPPS). This could turn out be a major lack in standards since UFPs have been pointed as serious health hazard. In this study, fractional efficiencies eight new full-scale bag and twenty-three medium samples were determined. The influence air velocity aerosol type was investigated, correlations between...

10.1080/02786826.2013.766667 article EN Aerosol Science and Technology 2013-01-22

This study explored the relationship between children's subjective perception of indoor environmental quality in classrooms, measured thermal and air factors, type ventilation. Environmental data were collected 45 classrooms 23 primary schools Sweden during heating season. Schools with three types ventilation recruited: natural or exhaust (category A), balanced supply-exhaust constant volume B), variable demand-controlled C). 796 children (8–14 years age) answered a questionnaire about their...

10.1016/j.buildenv.2023.110450 article EN cc-by Building and Environment 2023-05-24

10.1016/1352-2310(94)00202-v article EN Atmospheric Environment 1994-12-01

In this study, simulations were performed to investigate the influence of different vehicle climate ventilation strategies, mainly air recirculation (REC) degree, on cabin quality and system power. The focus is particle concentrations including PM2.5 (particles aerodynamic diameter less than 2.5 μm), UFP (ultrafine particles 100 nm), CO2 concentration. Three outside climates (cold, intermediate, warm) three are studied. studied originally shows possibilities meet WHO guideline 15 μg/m3 with...

10.1007/s11356-023-25219-x article EN cc-by Environmental Science and Pollution Research 2023-01-19
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