Table 1.

Environmental and mortality data relative to the warm period only (defined as the six warmest consecutive months in each city): data by country.

Country	N.cities	Period		Mortality		Air temperature			PM₁₀^*		PM_2.5^†		O₃^‡		NO₂^§
Country	N.cities	Period		N. deaths	daily mean	daily mean	75^th-99^th percentiles		daily mean	SD	daily mean	SD	daily mean	SD	daily mean	SD

Australia	3	2000	2009	241,720	46	21	24	29	20	10	7	5	33	11	17	9
Brazil	1	1997	2011	433,127	171	22	24	27	37	14	–	–	–	–	85	38
Canada	25	1995	2015	1,172,352	13	15	19	26	19	12	8	7	81	31	21	13
Chile	3	2004	2014	144,477	32	17	19	25	45	26	20	13	–	–	18	15
China	14	1996	2015	567,084	48	23	27	32	90	55	50	34	–	–	45	23
Colombia	1	1998	2013	183,207	63	14	15	16	62	20	–	–	–	–	30	10
Cyprus	5	2005	2019	33,777	3	26	28	33	41	41	18	24	–	–	23	10
Czech Republic	1	1995	2009	95,671	35	15	19	25	30	16	–	–	96	27	28	9
Ecuador	1	2014	2018	21,987	24	16	16	19	–	–	15	5	–	–	25	7
Estonia	4	2002	2020	54,359	5	13	17	24	16	11	6	4	52	16	10	9
Finland	1	1995	2014	60,750	17	13	17	24	17	14	14	12	–	–	8	6
France	20	2000	2017	914,028	14	18	21	28	20	9	12	7	–	–	20	11
Germany	12	1995	2015	1,341,855	29	16	19	26	23	13	12	6	74	32	27	12
Greece	1	2001	2010	137,232	75	25	29	33	45	19	23	10	93	22	51	17
Iceland	1	2002	2018	10,364	3	9	11	15	17	14	–	–	–	–	–	–
Iran	1	2002	2015	315,677	132	26	29	35	88	51	–	–	–	–	87	73
Israel	4	2000	2020	184,415	12	25	28	31	43	59	17	17	–	–	19	12
Italy	18	2006	2015	376,961	12	22	25	31	27	12	–	–	92	27	–	–
Japan	49	1995	2019	2,531,598	26	23	27	31	31	17	13	8	84	32	15	9
Kuwait	1	2010	2016	15,903	12	36	39	43	220	202	–	–	–	–	–	–
Malta	1	2006	2019	18,816	8	24	27	31	39	15	18	8	–	–	36	15
Mexico	9	2000	2012	857,491	58	21	23	31	50	24	27	11	117	48	–	–
Norway	1	2000	2018	36,656	11	12	15	22	18	8	9	4	–	–	–	–
Peru	1	2010	2014	88,703	97	21	22	24	82	26	–	–	–	–	25	11
Portugal	6	1995	2018	461,206	24	20	23	30	24	16	10	7	79	24	16	13
Puerto Rico	1	2009	2016	13,241	9	28	29	30	30	18	–	–	–	–	–	–
Romania	8	2008	2016	174,385	14	19	23	29	28	14	13	7	–	–	22	12
South Africa	7	2004	2013	478,780	55	21	23	27	44	28	25	18	73	29	–	–
South Korea	7	1999	2015	810,954	37	22	25	30	46	24	–	–	74	31	40	18
Spain	51	2001	2014	768,533	7	21	24	30	29	15	13	8	78	23	26	12
Sweden	1	1995	2010	71,764	24	14	17	23	14	7	8	5	69	19	27	11
Switzerland	8	1995	2013	110,620	4	16	20	26	21	11	15	8	91	36	29	15
Taiwan	3	1995	2014	523,614	47	28	29	31	50	23	27	13	115	42	36	14
Thailand	18	1999	2008	404,853	13	29	30	33	44	24	–	–	–	–	21	12
United Kingdom	123	1995	2018	2,138,448	7	15	17	22	20	10	11	4	–	–	24	13
United States	209	1995	2006	6,835,990	16	21	26	32	28	15	13	8	93	35	27	16

Canada 8 cities, Colombia 2001–2013, Mexico 7 cities, Portugal 5 cities, Romania 3 cities, South Africa 6 cities, Spain 42 cities 2001–2014, UK 31 cities, United States 89 cities.

^†

China 3 cities 2013–2015, Chile 2008–2014, Cyprus 2 cities, Estonia 3 cities 2008–2018, Germania 11 cities 2004–2015, Greece 2007–2010, Israel 3 cities, Japan 48 cities, Mexico 2 cities 2003–2012, Portugal 4 cities 2004–2018, Romania 7 cities, South Africa 5 cities, Spain 11 cities, Sweden 2001–2010, Switzerland 4 cities, Taiwan 2007–2014, UK 119 cities, United States 203 cities.

^‡

Italy 14 cities, South Africa 6 cities, Spain 49 cities, United States 189 cities. For Japan, ozone data was derived from the measurements of photochemical oxidant, which is primarily ozone (≥90 %), followed by others such as peroxyacetyl nitrate (PAN), hydrogen peroxide (H2O2) and organic hydroperoxides.

^§

France 18 cities, Spain 48 cities, UK 36 cities, United States 130 cities.