Abstract:
:People use a particulate respirator in order to reduce exposure to ambient fine particulate matter (PM2.5). Acute exposure to PM2.5 is known to increase blood pressure. However, systematic reviews or meta-analyses on blood pressure-related benefits of using a particulate respirator is lacking. Therefore, we reviewed randomized crossover intervention studies on blood pressure-related effects of particulate matter respirator use. We conducted a literature review of articles found on Embase, Medline, and Cochrane library on August 31, 2020. The study outcomes were systolic and diastolic blood pressure and mean arterial pressure. A random-effect model was used in the meta-analysis. Subgroup analyses, based on age (adult < 60 years, elderly ≥ 60 years), personal PM2.5 exposure levels (High: ≥ 25 μg/m3, Low: < 25 μg/m3), and types of monitoring methods (ambulatory and resting blood pressure) were conducted. We identified 297 references, and seven studies were included in our systematic review. None of the studies used a sham respirator as control and complete allocation concealment and blinding were impossible. The use of a particulate respirator was associated with a -1.23 mmHg (95% confidence interval (CI): -2.53, 0.07) change in systolic blood pressure and a -1.57 mmHg (95% CI: -3.85, 0.71) change in mean arterial pressure. There were significant heterogeneities and possibilities for publication bias. The subgroup analyses revealed that studies involving elderly individuals, those conducted in high PM2.5 personal exposure, and those in which resting blood pressure was monitored demonstrated a larger decrease in blood pressure resulting from respirator use. Further intervention studies with a large sample size and subjects with diverse characteristics and different personal PM2.5 levels may add the evidence to current literature.
journal_name
Environ Pollutjournal_title
Environmental pollution (Barking, Essex : 1987)authors
Han C,Lim YH,Hong YCdoi
10.1016/j.envpol.2021.117574keywords:
["Blood pressure","Meta-analysis","PM(2.5)","Particulate matter respirator","Systematic review"]subject
Has Abstractpub_date
2021-10-01 00:00:00pages
117574eissn
0269-7491issn
1873-6424pii
S0269-7491(21)01156-8journal_volume
286pub_type
杂志文章,meta分析,评审相关文献
文献大全abstract::Land-treatment of petrochemical wastes is a widely used method to dispose of hazardous and non-hazardous waste by biodegradation. However, no comprehensive assessment of the impact of such disposal techniques on terrestrial ecosystems has been conducted. Despite the presence of suspected immunotoxicants in the soil, w...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章,多中心研究
doi:10.1016/s0269-7491(00)00100-7
更新日期:2001-01-01 00:00:00
abstract::To determine if ozone (O3) and root zone temperature (RZT) affect plant biomass allocation and photosynthesis, radish (Raphanus sativus) plants were grown in controlled environment laboratory chambers in one of four treatments: episodic O3 (average delivery 0.063 mumol mol-1) with RZT at 13 degrees C, episodic O3 (sam...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(99)00326-7
更新日期:2001-01-01 00:00:00
abstract::To provide an understanding of arsenic (As) and mercury (Hg) concentrations in soil, sediment, water, and fish tissues, samples were collected from a Mississippi River alluvial floodplain located in northwest Mississippi. As concentrations increased approximately an order of magnitude from water (5.12 micrograms/l) to...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00029-4
更新日期:2001-01-01 00:00:00
abstract::We examined the influences of major nutrients (N, P, Si) on the accumulation of three trace metals [Cd, Se(IV), and Zn] in four species of marine phytoplankton (diatom, green alga, dinoflagellate, prasinophyte). Relative metal uptake was quantified by the kinetic measurements of metal concentration factor over a short...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00071-3
更新日期:2001-01-01 00:00:00
abstract::Canton Ticino in southern Switzerland is exposed to some of the highest concentrations of tropospheric ozone in Europe. During recent field surveys in Canton Ticino, foliar symptoms identical to those caused by ozone have been documented on native tree and shrub species. In Europe, the critical ozone level for forest ...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00060-9
更新日期:2001-01-01 00:00:00
abstract::Human and ecological risk assessment requires the sources, distribution, mobility and environmental behaviour of contaminants to be investigated on a site-specific basis. It often deals with data sets which are relatively small and affected by sampling gaps. In the case of a polycyclic aromatic hydrocarbon (PAH) conta...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00089-0
更新日期:2001-01-01 00:00:00
abstract::Field results have shown that Mytilus californianus is able to release its Cd concentrations significantly in just a few days. The existing paradigm states that Cd elimination from Mytilus soft tissues is a very slow process. This discrepancy was investigated in the laboratory, testing the effect of two Cd levels (10 ...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00117-2
更新日期:2001-01-01 00:00:00
abstract::Sentinel species are biological monitors that accumulate a pollutant in their tissues without significant adverse effects. Primarily used to measure the amount of a pollutant that is biologically available, they may also increase the sensitivity of an analytical procedure or summarise a complex pollution signal. This ...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00038-5
更新日期:2001-01-01 00:00:00
abstract::A stochastistic, Weibull probability model was developed and verified to simulate the underlying frequency distributions of hourly ozone (O3) concentrations (exposure dynamics) using the single, weekly mean values obtained from a passive (sodium nitrite absorbent) sampler. The simulation was based on the data derived ...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00228-1
更新日期:2001-01-01 00:00:00
abstract::A greenhouse study was conducted to investigate the accumulation of rare earth elements (REEs), La, Ce, Pr and Nd, in winter wheat (Triticum aestivum L.), and the speciation of these elements in soil following the application of REE-based fertilizers. Improved crop yield was confirmed by the experiment. The accumulati...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00143-3
更新日期:2001-01-01 00:00:00
abstract::Lead contamination of seabirds from the use of lead shot in Greenland was studied in thick-billed murre hunted at Nuuk in November 1998. In each bird shot pellets were located and counted using X-ray. The birds were skinned and viscera, head, wings and legs removed, after which the carcass was cooked. The soup and bre...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00130-5
更新日期:2001-01-01 00:00:00
abstract::Total maximum daily loads (TMDL) are required by the US Environmental Protection Agency for pollutants that have impaired the designated uses of surface waters in the nation. Setting an appropriate TMDL requires quantitative information on both the external pollutant inputs and the processes affecting pollutant dynami...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00235-9
更新日期:2001-01-01 00:00:00
abstract::To trace the biomagnification of organochlorines in marine food chains near Svalbard, which may lead to the high organochlorine concentrations in top predators from the area, we compared concentrations and patterns of organochlorines in selected taxa. The pelagic crustaceans, Calanus spp. (copepods), Thysanoessa spp. ...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00171-8
更新日期:2001-01-01 00:00:00
abstract::To facilitate translation of the state of marine sediment quality for public information, a pollution index was developed from the results of a routine monitoring program. Principal component analysis (PCA) of 24 variables at 64 monitoring stations from 1987 to 1997 was carried out to identify the most important param...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00192-5
更新日期:2001-01-01 00:00:00
abstract::In this literature study, accumulation data of metals in terrestrial invertebrates were collected and compared (Arthropoda and Lumbricidae). Based on total soil concentrations and body concentrations, regression equations were calculated for each metal (Cd, Cu, Pb and Zn) and each taxonomic group. We also tried to fin...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00179-2
更新日期:2001-01-01 00:00:00
abstract::The concentration of polycyclic aromatic hydrocarbons (PAHs) in atmospheric precipitation and aerosol samples was monitored in a rural site by Lake Balaton, Hungary to examine the seasonal variation. The seasonal mean concentration of individual 3-6-ring PAHs in precipitation varied from 1 to 54 ng l-1 and from 3 to 3...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00208-6
更新日期:2001-01-01 00:00:00
abstract::Precipitation chemistry was studied in the Metropolitan Region of Rio de Janeiro (MRRJ). This study reveals that rainwater in the MRRJ is affected by emissions of air pollutants and provides essential data for future estimates of regional biogeochemical cycles and the impacts of acid deposition on tropical ecosystems....
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00209-8
更新日期:2001-01-01 00:00:00
abstract::A new strategy for characterisation of airborne uranium contamination based on ICP mass spectrometric analysis of tree bark is described. The uranium content of tree barks (50 samples) obtained from diverse locations (remote, rural, industrial) varied over almost four orders of magnitude (0.001-8.3 micrograms/g U) wit...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(00)00236-0
更新日期:2001-01-01 00:00:00
abstract::A kinetic approach was employed to determine the rates of metal uptake (Cd, Cr and Zn) from the dissolved phase and the rate constants of metal depuration in the mussel Perna viridis and the clam Ruditapes philippinarum. The effects of ambient metal concentration, salinity, and body size on the metal influx rate were ...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00087-2
更新日期:2001-01-01 00:00:00
abstract::A technique is described that uses artificial resin beads with known surface properties to investigate the factors influencing the bioaccumulation of pollutants from sediments. One advantage of this technique is that it provides a standard procedure against which it is possible to calibrate natural sediments with thei...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00090-2
更新日期:2001-01-01 00:00:00
abstract::Lochnagar is a remote mountain lake to the south-east of the Cairngorm region in Scotland. Its catchment receives anthropogenic trace metals solely from atmospheric deposition. Ten peat cores were taken from the catchment and analysis confirmed that they have been contaminated by trace metals. The peats have an high a...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00107-5
更新日期:2001-01-01 00:00:00
abstract::To study the impact of ozone (O3) and O3 plus CO2 on aspen growth, we planted two trembling aspen clones, differing in sensitivity to O3 in the ground in open-top chambers and exposed them to different concentrations of O3 and O3 plus CO, for 98 days. Ozone exposure (58 to 97 microl l(-1)-h. total exposure) decreased ...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00225-1
更新日期:2001-01-01 00:00:00
abstract::We examined the response of hybrid poplar to elevated CO2 in contrasting growth environments: controlled environment chamber (CE). open-top chamber (OTC) and poplar free air CO2 enrichment (POPFACE) in order to compare short versus long-term effects and to determine whether generalisations in response are possible for...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00235-4
更新日期:2001-01-01 00:00:00
abstract::The potential value of the marine prosobranch Nerita saxtilis as an efficient biological monitor to heavy metal pollution in the Red Sea was investigated. Storage ability of lead and cadmium was compared in shell, headfoot and digestive gland of the marine snail N. saxtilis collected from Al-Hamrauin area at El-kuseir...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00137-3
更新日期:2002-01-01 00:00:00
abstract::Samples of the moss Hypnum cupressiforme and the epiphytic lichen Parmelia, caperata were collected during the summer of 1999 in an area (Colline Metallifere, central Italy) intensively exploited in the past for metals (Cu, Fe, Pb, Zn) and currently for geothermal resources. Lichens were more sensitive than mosses to ...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00125-7
更新日期:2002-01-01 00:00:00
abstract::Chelate-enhanced phytoremediation has been proposed as an effective tool for the extraction of heavy metals from soils by plants. However, side-effects related to the addition of chelates, e.g. metal leaching and effects on soil micro-organisms, were usually neglected. Therefore, greenhouse and lysimeter studies were ...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00150-6
更新日期:2002-01-01 00:00:00
abstract::The quantitative relationship between the median effective concentration (EC50) of organic chemicals to Daphnia magna and the number of molecular fragments was investigated based on experimental EC50 values for 217 chemicals derived from the literature. A fragment constant model was developed based on a multivariate l...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00119-1
更新日期:2002-01-01 00:00:00
abstract::Based on field data from 10 USA cities and national urban tree cover data, it is estimated that urban trees in the coterminous USA currently store 700 million tonnes of carbon ($14,300 million value) with a gross carbon sequestration rate of 22.8 million tC/yr ($460 million/year). Carbon storage within cities ranges f...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00214-7
更新日期:2002-01-01 00:00:00
abstract::CAMFor (Carbon Accounting Model for Forests) is a sophisticated spreadsheet model developed to assist in carbon accounting and projection. This model can integrate information from a range of alternate sources including user input, default parameters and third party model outputs to calculate the carbon flows associat...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00250-0
更新日期:2002-01-01 00:00:00
abstract::Simulations of above-canopy water vapor and CO2 fluxes were calculated by the USGF linked model of canopy gas exchange and subsurface processes for the 1996-1997 winter wheat season at the AmeriFlux Wheat Site, Oklahoma. Soil surface CO2 flux plus canopy gas exchange and transpiration plus soil evaporation modeled the...
journal_title:Environmental pollution (Barking, Essex : 1987)
pub_type: 杂志文章
doi:10.1016/s0269-7491(01)00245-7
更新日期:2002-01-01 00:00:00