ELIZA cgi-bash version rev. 1.91
- Medical English LInking keywords finder for the PubMed Zipped Archive (ELIZA) -

return kwic search for significant out of >500 occurrences
583352 occurrences (No.14 in the rank) during 5 years in the PubMed. [cache]
180) Despite significant reductions in anthropogenic emissions, the Beijing-Tianjin-Hebei (BTH) region still experienced high air pollution concentrations.
--- ABSTRACT ---
PMID:33930403 DOI:10.1016/j.envres.2021.111186
2021 Environmental research
* Persistent high PM2.5 pollution driven by unfavorable meteorological conditions during the COVID-19 lockdown period in the Beijing-Tianjin-Hebei region, China.
- Lockdown measures to curtail the COVID-19 pandemic in China halted most non-essential activities on January 23, 2020. Despite significant reductions in anthropogenic emissions, the Beijing-Tianjin-Hebei (BTH) region still experienced high air pollution concentrations. Employing two emissions reduction scenarios, the Community Multiscale Air Quality (CMAQ) model was used to investigate the PM2.5 concentrations change in this region. The model using the scenario (C3) with greater traffic reductions performed better compared to the observed PM2.5. Compared with the no reductions base-case (scenario C1), PM2.5 reductions with scenario C3 were 2.70, 2.53, 2.90, 2.98, 3.30, 2.81, 2.82, 2.98, 2.68, and 2.83 μg/m3 in Beijing, Tianjin, Shijiazhuang, Baoding, Cangzhou, Chengde, Handan, Hengshui, Tangshan, and Xingtai, respectively. During high-pollution days in scenario C3, the percentage reductions in PM2.5 concentrations in Beijing, Tianjin, Shijiazhuang, Baoding, Cangzhou, Chengde, Handan, Hengshui, Tangshan, and Xingtai were 3.76, 3.54, 3.28, 3.22, 3.57, 3.56, 3.47, 6.10, 3.61, and 3.67%, respectively. However, significant increases caused by unfavorable meteorological conditions counteracted the emissions reduction effects resulting in high air pollution in BTH region during the lockdown period. This study shows that effective air pollution control strategies incorporating these results are urgently required in BTH to avoid severe pollution.
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(1)20 increase (21)5 and (41)2 DDIs (61)2 heterogeneity
(2)16 differences (22)5 improvement (42)2 adverse (62)2 impacts
(3)15 difference (23)5 results (43)2 antioxidant (63)2 impairment
(4)13 reduction (24)5 risk (44)2 at (64)2 implications
(5)11 changes (25)4 amount (45)2 barriers (65)2 increased
(6)10 association (26)4 associations (46)2 being (66)2 induction
(7)10 improvements (27)4 burden (47)2 benefits (67)2 interaction
(8)10 positive (28)4 clinical (48)2 cause (68)2 loci
(9)10 role (29)4 public (49)2 challenges (69)2 morbidity
(10)9 impact (30)3 advances (50)2 clusters (70)2 number
(11)8 decrease (31)3 as (51)2 cognitive (71)2 personal
(12)8 in (32)3 evidence (52)2 consequence (72)2 portion
(13)7 *null* (33)3 expression (53)2 contribution (73)2 relationship
(14)7 effect (34)3 gaps (54)2 correlation (74)2 sequence
(15)6 effects (35)3 health (55)2 factor (75)2 survival
(16)6 increases (36)3 highly (56)2 finding (76)2 than
(17)6 progress (37)3 inhibition (57)2 findings (77)2 therapeutic
(18)6 proportion (38)3 interactions (58)2 for (78)2 trend
(19)6 reductions (39)3 predictors (59)2 fraction (79)2 variation
(20)5 (p (40)3 upregulation (60)2 functional (80)2 variations

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--- WordNet output for significant --- =>意義深い, 重大な, 意味のある, 意味ありげな, 重要な Overview of adj significant The adj significant has 4 senses (first 4 from tagged texts) 1. (18) significant, important -- (important in effect or meaning; "a significant change in tax laws"; "a significant change in the Constitution"; "a significant contribution"; "significant details"; "statistically significant") 2. (9) significant, substantial -- (fairly large; "won by a substantial margin") 3. (3) significant -- (too closely correlated to be attributed to chance and therefore indicating a systematic relation; "the interaction effect is significant at the .01 level"; "no significant difference was found") 4. (2) meaning, pregnant, significant -- (rich in significance or implication; "a meaning look") --- WordNet end ---