冬季雾霾,逐月看遍全世界
煤烟加上山谷逆温;问题出在空气,不是寒冷。
这是一个警示页面,不是推荐。冬季雾霾在 SeasonMap 上覆盖38 个目的地;下面列出的月份,是风险窗口开着的月份——其中大多数星期都会平静度过,每个地点旁边的分数依然是普通的气候分数,风险也一并算在内。
什么时候上演
1月的冬季雾霾
- 达卡市 🇧🇩 孟加拉国Dry-season air · 11月15日 – 2月28日Brick kilns fire through the dry months, the construction dust never stops, and the city trades places with Delhi and Lahore at the top of the daily air rankings.93
- 高雄市 🇹🇼 中华民国Winter air-quality season · 10月1日 – 3月31日(通常)The rain stops, the wind drops and the petrochemical belt on the north side has nowhere to go.87
- 瓦拉纳西 🇮🇳 印度Post-Diwali smog · 10月25日 – 2月10日(通常)Stubble burning upwind, firecrackers and a cold air trap put the plains under a brown haze from Diwali onward.86
- 台中市 🇹🇼 中华民国Autumn and winter haze · 10月15日 – 3月31日(通常)Once the summer winds drop, the mountains behind the city stop the air moving and central Taiwan's industry and power stations sit in it.86
- 阿格拉 🇮🇳 印度Winter smog season · 11月1日 – 1月31日(通常)Cold still air over the Doab holds in field smoke, brick kilns and traffic, and the monument can vanish from the far end of its own garden before ten.82
- 拉合尔 🇵🇰 巴基斯坦Smog season · 10月15日 – 1月31日(通常)The province declares a smog season and acts on it: schools shut, offices go part-remote, brick kilns and building sites stop.74
- 伊斯兰堡 🇵🇰 巴基斯坦Winter haze from the plains · 11月1日 – 1月15日(通常)The Punjab smog does not stop at the motorway.69
- 成都市 🇨🇳 中华人民共和国Winter smog · 11月15日 – 2月28日The basin holds its own air all winter under an inversion.67
- 德黑兰 🇮🇷 伊朗Winter inversion smog · 11月15日 – 2月28日(通常)Cold air traps the traffic exhaust against the mountains for days at a time and the government closes schools and offices when it gets bad.64
- 地拉那 🇦🇱 阿尔巴尼亚Winter air pollution · 11月15日 – 2月28日Old diesel cars in a basin ringed by hills, plus wood heating, and the winter readings climb well past what the city's reputation for mild weather suggests.63
- 上海市 🇨🇳 中华人民共和国Winter haze · 11月15日 – 2月28日(通常)Still, cold weeks trap particulates over the delta and the skyline goes flat grey for days until a front clears it.62
- 都灵 🇮🇹 意大利Po valley smog season · 10月1日 – 3月31日The city sits in a bowl with the Alps on three sides, and winter inversions trap particulates for days.62
- 米兰 🇮🇹 意大利Po valley smog season · 11月15日 – 2月28日(通常)The valley sits under the Alps with nowhere for the air to go, so still cold weeks stack particulate up until the region bans the oldest cars.60
- Pingyao 🇨🇳 中华人民共和国Heating-season smog · 11月15日 – 3月15日(通常)Shanxi is China's coal province and the central heating goes on in the middle of November.59
- 普罗夫迪夫 🇧🇬 保加利亚Winter smog · 11月1日 – 3月10日(通常)Wood and coal stoves in the surrounding villages, plus an inversion that traps everything over the Thracian plain, give Plovdiv some of the worst winter particulate readings in the EU.58
- 西安市 🇨🇳 中华人民共和国Winter smog · 11月15日 – 2月28日The Guanzhong basin traps its air under the Qinling mountains all winter, and Xi'an posts some of the worst readings in the country.57
- 巴尼亚卢卡 🇧🇦 波斯尼亚和黑塞哥维那Winter heating smog · 11月15日 – 2月28日(通常)Solid-fuel heating plus a valley inversion parks the smoke over the city on still winter days, and January is reliably the worst of it.56
- 斯科普里 🇲🇰 北马其顿Winter air pollution · 11月1日 – 2月28日Household heating and traffic under a valley inversion make this one of the worst-affected capitals in Europe, and schools have been closed over it.55
- 安卡拉 🇹🇷 土耳其Winter inversion · 11月15日 – 2月28日(通常)The city sits in a bowl and cold, still weather traps household heating smoke in it for days at a time.55
- 贝尔格莱德 🇷🇸 塞尔维亚Winter smog · 11月1日 – 3月15日(通常)Household coal and wood, old cars and a windless inversion over the confluence put Belgrade near the top of the world air-quality tables on the worst January mornings.54
- 尼什 🇷🇸 塞尔维亚Winter heating smog · 12月1日 – 2月28日(通常)The same basin that traps the summer heat traps coal smoke from December to February, and the readings go from ordinary to genuinely unhealthy.52
- 博伊西 🇺🇸 美国Winter inversion · 11月15日 – 2月15日(通常)Cold air pools in the U-shaped valley under a warm lid and the wood smoke and traffic exhaust stay with it, sometimes for weeks.51
- 诺维萨德 🇷🇸 塞尔维亚Winter air pollution · 11月15日 – 2月28日Cold, still days over the Pannonian flat trap household heating smoke and the city regularly logs some of the worst readings in Europe.51
- 索非亚 🇧🇬 保加利亚Winter smog · 11月1日 – 3月10日(通常)The city sits in a basin under Vitosha and the cold air does not move; wood and coal heating in the outer districts then fills it.49
- 斯图加特 🇩🇪 德国Valley inversion air · 11月15日 – 2月28日(通常)The city centre sits in a steep bowl with almost no through wind, which is why it spent years as Germany's worst spot for traffic particulates and still traps its own air on still winter days.49
……1月还有 10 个。
2月的冬季雾霾
- 高雄市 🇹🇼 中华民国Winter air-quality season · 10月1日 – 3月31日(通常)The rain stops, the wind drops and the petrochemical belt on the north side has nowhere to go.90
- 瓦拉纳西 🇮🇳 印度Post-Diwali smog · 10月25日 – 2月10日(通常)Stubble burning upwind, firecrackers and a cold air trap put the plains under a brown haze from Diwali onward.89
- 台中市 🇹🇼 中华民国Autumn and winter haze · 10月15日 – 3月31日(通常)Once the summer winds drop, the mountains behind the city stop the air moving and central Taiwan's industry and power stations sit in it.88
- 达卡市 🇧🇩 孟加拉国Dry-season air · 11月15日 – 2月28日Brick kilns fire through the dry months, the construction dust never stops, and the city trades places with Delhi and Lahore at the top of the daily air rankings.84
- 地拉那 🇦🇱 阿尔巴尼亚Winter air pollution · 11月15日 – 2月28日Old diesel cars in a basin ringed by hills, plus wood heating, and the winter readings climb well past what the city's reputation for mild weather suggests.75
- 成都市 🇨🇳 中华人民共和国Winter smog · 11月15日 – 2月28日The basin holds its own air all winter under an inversion.73
- 德黑兰 🇮🇷 伊朗Winter inversion smog · 11月15日 – 2月28日(通常)Cold air traps the traffic exhaust against the mountains for days at a time and the government closes schools and offices when it gets bad.70
- 普罗夫迪夫 🇧🇬 保加利亚Winter smog · 11月1日 – 3月10日(通常)Wood and coal stoves in the surrounding villages, plus an inversion that traps everything over the Thracian plain, give Plovdiv some of the worst winter particulate readings in the EU.68
- 西安市 🇨🇳 中华人民共和国Winter smog · 11月15日 – 2月28日The Guanzhong basin traps its air under the Qinling mountains all winter, and Xi'an posts some of the worst readings in the country.68
- 都灵 🇮🇹 意大利Po valley smog season · 10月1日 – 3月31日The city sits in a bowl with the Alps on three sides, and winter inversions trap particulates for days.68
- 斯科普里 🇲🇰 北马其顿Winter air pollution · 11月1日 – 2月28日Household heating and traffic under a valley inversion make this one of the worst-affected capitals in Europe, and schools have been closed over it.68
- 贝尔格莱德 🇷🇸 塞尔维亚Winter smog · 11月1日 – 3月15日(通常)Household coal and wood, old cars and a windless inversion over the confluence put Belgrade near the top of the world air-quality tables on the worst January mornings.67
- 尼什 🇷🇸 塞尔维亚Winter heating smog · 12月1日 – 2月28日(通常)The same basin that traps the summer heat traps coal smoke from December to February, and the readings go from ordinary to genuinely unhealthy.67
- 上海市 🇨🇳 中华人民共和国Winter haze · 11月15日 – 2月28日(通常)Still, cold weeks trap particulates over the delta and the skyline goes flat grey for days until a front clears it.66
- 米兰 🇮🇹 意大利Po valley smog season · 11月15日 – 2月28日(通常)The valley sits under the Alps with nowhere for the air to go, so still cold weeks stack particulate up until the region bans the oldest cars.66
- 安卡拉 🇹🇷 土耳其Winter inversion · 11月15日 – 2月28日(通常)The city sits in a bowl and cold, still weather traps household heating smoke in it for days at a time.66
- 诺维萨德 🇷🇸 塞尔维亚Winter air pollution · 11月15日 – 2月28日Cold, still days over the Pannonian flat trap household heating smoke and the city regularly logs some of the worst readings in Europe.65
- 巴尼亚卢卡 🇧🇦 波斯尼亚和黑塞哥维那Winter heating smog · 11月15日 – 2月28日(通常)Solid-fuel heating plus a valley inversion parks the smoke over the city on still winter days, and January is reliably the worst of it.65
- 索非亚 🇧🇬 保加利亚Winter smog · 11月1日 – 3月10日(通常)The city sits in a basin under Vitosha and the cold air does not move; wood and coal heating in the outer districts then fills it.64
- 普里什蒂纳 科索沃Winter air pollution · 11月1日 – 2月28日Two lignite power stations sit just outside the city and household heating adds to them, and cold still nights trap the lot in the basin.64
- Pingyao 🇨🇳 中华人民共和国Heating-season smog · 11月15日 – 3月15日(通常)Shanxi is China's coal province and the central heating goes on in the middle of November.64
- 萨拉热窝 🇧🇦 波斯尼亚和黑塞哥维那Valley inversion smog · 11月1日 – 2月28日Cold air settles in the bowl of the valley and holds coal and wood smoke over the city for days at a time; the readings regularly rank among the world's worst.63
- 斯图加特 🇩🇪 德国Valley inversion air · 11月15日 – 2月28日(通常)The city centre sits in a steep bowl with almost no through wind, which is why it spent years as Germany's worst spot for traffic particulates and still traps its own air on still winter days.62
- 博伊西 🇺🇸 美国Winter inversion · 11月15日 – 2月15日(通常)Cold air pools in the U-shaped valley under a warm lid and the wood smoke and traffic exhaust stay with it, sometimes for weeks.61
- 北京市 🇨🇳 中华人民共和国Winter smog days · 11月15日 – 2月28日(通常)The heating season and a still, cold high can pin a grey lid over the city for days; it is far better than it was a decade ago, but the bad spells still come in runs of three or four days.59
……2月还有 7 个。
3月的冬季雾霾
- 高雄市 🇹🇼 中华民国Winter air-quality season · 10月1日 – 3月31日(通常)The rain stops, the wind drops and the petrochemical belt on the north side has nowhere to go.80
- 台中市 🇹🇼 中华民国Autumn and winter haze · 10月15日 – 3月31日(通常)Once the summer winds drop, the mountains behind the city stop the air moving and central Taiwan's industry and power stations sit in it.80
- 普罗夫迪夫 🇧🇬 保加利亚Winter smog · 11月1日 – 3月10日(通常)Wood and coal stoves in the surrounding villages, plus an inversion that traps everything over the Thracian plain, give Plovdiv some of the worst winter particulate readings in the EU.75
- 贝尔格莱德 🇷🇸 塞尔维亚Winter smog · 11月1日 – 3月15日(通常)Household coal and wood, old cars and a windless inversion over the confluence put Belgrade near the top of the world air-quality tables on the worst January mornings.74
- 都灵 🇮🇹 意大利Po valley smog season · 10月1日 – 3月31日The city sits in a bowl with the Alps on three sides, and winter inversions trap particulates for days.74
- Pingyao 🇨🇳 中华人民共和国Heating-season smog · 11月15日 – 3月15日(通常)Shanxi is China's coal province and the central heating goes on in the middle of November.71
- 索非亚 🇧🇬 保加利亚Winter smog · 11月1日 – 3月10日(通常)The city sits in a basin under Vitosha and the cold air does not move; wood and coal heating in the outer districts then fills it.70
- 比什凯克 🇰🇬 吉尔吉斯斯坦Winter smog · 11月1日 – 3月1日(通常)Coal stoves in the private housing around the city plus an inversion in the bowl put Bishkek near the top of the world air-quality lists on winter mornings.68
- 弗罗茨瓦夫 🇵🇱 波兰Winter smog · 11月1日 – 3月10日(通常)Coal and wood stoves still heat a lot of the old tenement stock, and a windless freeze puts the readings into the range that makes national news.67
- 克拉科夫 🇵🇱 波兰Winter smog · 11月1日 – 3月15日(通常)Coal heating in the valley towns around the city and a cold inversion put the worst air of the year over Krakow between November and March.65
- 波茲南 🇵🇱 波兰Winter smog · 11月10日 – 3月5日(通常)Solid-fuel stoves in the older districts and windless, freezing days push the air into the range Poland is known for.65
- 华沙 🇵🇱 波兰Winter smog · 11月1日 – 3月15日(通常)Coal and wood heating in the surrounding towns plus a cold, still inversion give the city its worst air between November and March.64
- 罗兹 🇵🇱 波兰Winter smog · 11月1日 – 3月15日(通常)Coal and wood stoves in the old tenement districts, plus still, cold air over a flat city, put the worst readings of the year here between November and March.64
- 札科帕内 🇵🇱 波兰Winter smog · 11月15日 – 3月15日(通常)A resort at the foot of a national park with some of the worst winter air in Poland: coal stoves in the valley and no wind to move it.53
6月的冬季雾霾
- 比勒陀利亚 🇿🇦 南非Winter haze in the valley · 6月1日 – 8月31日(通常)Cold air settles between the ridges and holds smoke from veld fires and household coal under it, so the horizon browns out for weeks.88
- 约翰内斯堡 🇿🇦 南非Winter haze over the Highveld · 6月1日 – 8月31日(通常)Cold air traps smoke from veld fires, coal stoves and the industrial East Rand under an inversion, and the horizon goes brown for weeks.85
- 雅加达 🇮🇩 印度尼西亚Dry-season smog · 6月15日 – 10月15日(通常)Traffic, coal plants along the coast and no rain to clear it: Jakarta regularly ranks among the world's most polluted major cities in these months.65
7月的冬季雾霾
- 比勒陀利亚 🇿🇦 南非Winter haze in the valley · 6月1日 – 8月31日(通常)Cold air settles between the ridges and holds smoke from veld fires and household coal under it, so the horizon browns out for weeks.88
- 约翰内斯堡 🇿🇦 南非Winter haze over the Highveld · 6月1日 – 8月31日(通常)Cold air traps smoke from veld fires, coal stoves and the industrial East Rand under an inversion, and the horizon goes brown for weeks.85
- 雅加达 🇮🇩 印度尼西亚Dry-season smog · 6月15日 – 10月15日(通常)Traffic, coal plants along the coast and no rain to clear it: Jakarta regularly ranks among the world's most polluted major cities in these months.69
8月的冬季雾霾
- 比勒陀利亚 🇿🇦 南非Winter haze in the valley · 6月1日 – 8月31日(通常)Cold air settles between the ridges and holds smoke from veld fires and household coal under it, so the horizon browns out for weeks.93
- 约翰内斯堡 🇿🇦 南非Winter haze over the Highveld · 6月1日 – 8月31日(通常)Cold air traps smoke from veld fires, coal stoves and the industrial East Rand under an inversion, and the horizon goes brown for weeks.91
- 雅加达 🇮🇩 印度尼西亚Dry-season smog · 6月15日 – 10月15日(通常)Traffic, coal plants along the coast and no rain to clear it: Jakarta regularly ranks among the world's most polluted major cities in these months.70
9月的冬季雾霾
10月的冬季雾霾
- 都灵 🇮🇹 意大利Po valley smog season · 10月1日 – 3月31日The city sits in a bowl with the Alps on three sides, and winter inversions trap particulates for days.78
- 拉合尔 🇵🇰 巴基斯坦Smog season · 10月15日 – 1月31日(通常)The province declares a smog season and acts on it: schools shut, offices go part-remote, brick kilns and building sites stop.72
- 瓦拉纳西 🇮🇳 印度Post-Diwali smog · 10月25日 – 2月10日(通常)Stubble burning upwind, firecrackers and a cold air trap put the plains under a brown haze from Diwali onward.65
- 台中市 🇹🇼 中华民国Autumn and winter haze · 10月15日 – 3月31日(通常)Once the summer winds drop, the mountains behind the city stop the air moving and central Taiwan's industry and power stations sit in it.64
- 雅加达 🇮🇩 印度尼西亚Dry-season smog · 6月15日 – 10月15日(通常)Traffic, coal plants along the coast and no rain to clear it: Jakarta regularly ranks among the world's most polluted major cities in these months.61
- 高雄市 🇹🇼 中华民国Winter air-quality season · 10月1日 – 3月31日(通常)The rain stops, the wind drops and the petrochemical belt on the north side has nowhere to go.60
11月的冬季雾霾
- 拉合尔 🇵🇰 巴基斯坦Smog season · 10月15日 – 1月31日(通常)The province declares a smog season and acts on it: schools shut, offices go part-remote, brick kilns and building sites stop.91
- 伊斯兰堡 🇵🇰 巴基斯坦Winter haze from the plains · 11月1日 – 1月15日(通常)The Punjab smog does not stop at the motorway.90
- 阿格拉 🇮🇳 印度Winter smog season · 11月1日 – 1月31日(通常)Cold still air over the Doab holds in field smoke, brick kilns and traffic, and the monument can vanish from the far end of its own garden before ten.88
- 瓦拉纳西 🇮🇳 印度Post-Diwali smog · 10月25日 – 2月10日(通常)Stubble burning upwind, firecrackers and a cold air trap put the plains under a brown haze from Diwali onward.82
- 上海市 🇨🇳 中华人民共和国Winter haze · 11月15日 – 2月28日(通常)Still, cold weeks trap particulates over the delta and the skyline goes flat grey for days until a front clears it.78
- 成都市 🇨🇳 中华人民共和国Winter smog · 11月15日 – 2月28日The basin holds its own air all winter under an inversion.78
- 德黑兰 🇮🇷 伊朗Winter inversion smog · 11月15日 – 2月28日(通常)Cold air traps the traffic exhaust against the mountains for days at a time and the government closes schools and offices when it gets bad.78
- Pingyao 🇨🇳 中华人民共和国Heating-season smog · 11月15日 – 3月15日(通常)Shanxi is China's coal province and the central heating goes on in the middle of November.78
- 台中市 🇹🇼 中华民国Autumn and winter haze · 10月15日 – 3月31日(通常)Once the summer winds drop, the mountains behind the city stop the air moving and central Taiwan's industry and power stations sit in it.77
- 达卡市 🇧🇩 孟加拉国Dry-season air · 11月15日 – 2月28日Brick kilns fire through the dry months, the construction dust never stops, and the city trades places with Delhi and Lahore at the top of the daily air rankings.75
- 安卡拉 🇹🇷 土耳其Winter inversion · 11月15日 – 2月28日(通常)The city sits in a bowl and cold, still weather traps household heating smoke in it for days at a time.73
- 高雄市 🇹🇼 中华民国Winter air-quality season · 10月1日 – 3月31日(通常)The rain stops, the wind drops and the petrochemical belt on the north side has nowhere to go.72
- 西安市 🇨🇳 中华人民共和国Winter smog · 11月15日 – 2月28日The Guanzhong basin traps its air under the Qinling mountains all winter, and Xi'an posts some of the worst readings in the country.71
- 普罗夫迪夫 🇧🇬 保加利亚Winter smog · 11月1日 – 3月10日(通常)Wood and coal stoves in the surrounding villages, plus an inversion that traps everything over the Thracian plain, give Plovdiv some of the worst winter particulate readings in the EU.70
- 地拉那 🇦🇱 阿尔巴尼亚Winter air pollution · 11月15日 – 2月28日Old diesel cars in a basin ringed by hills, plus wood heating, and the winter readings climb well past what the city's reputation for mild weather suggests.70
- 北京市 🇨🇳 中华人民共和国Winter smog days · 11月15日 – 2月28日(通常)The heating season and a still, cold high can pin a grey lid over the city for days; it is far better than it was a decade ago, but the bad spells still come in runs of three or four days.67
- 斯科普里 🇲🇰 北马其顿Winter air pollution · 11月1日 – 2月28日Household heating and traffic under a valley inversion make this one of the worst-affected capitals in Europe, and schools have been closed over it.67
- 索非亚 🇧🇬 保加利亚Winter smog · 11月1日 – 3月10日(通常)The city sits in a basin under Vitosha and the cold air does not move; wood and coal heating in the outer districts then fills it.66
- 博伊西 🇺🇸 美国Winter inversion · 11月15日 – 2月15日(通常)Cold air pools in the U-shaped valley under a warm lid and the wood smoke and traffic exhaust stay with it, sometimes for weeks.66
- 贝尔格莱德 🇷🇸 塞尔维亚Winter smog · 11月1日 – 3月15日(通常)Household coal and wood, old cars and a windless inversion over the confluence put Belgrade near the top of the world air-quality tables on the worst January mornings.65
- 都灵 🇮🇹 意大利Po valley smog season · 10月1日 – 3月31日The city sits in a bowl with the Alps on three sides, and winter inversions trap particulates for days.65
- 诺维萨德 🇷🇸 塞尔维亚Winter air pollution · 11月15日 – 2月28日Cold, still days over the Pannonian flat trap household heating smoke and the city regularly logs some of the worst readings in Europe.63
- 巴尼亚卢卡 🇧🇦 波斯尼亚和黑塞哥维那Winter heating smog · 11月15日 – 2月28日(通常)Solid-fuel heating plus a valley inversion parks the smoke over the city on still winter days, and January is reliably the worst of it.63
- 米兰 🇮🇹 意大利Po valley smog season · 11月15日 – 2月28日(通常)The valley sits under the Alps with nowhere for the air to go, so still cold weeks stack particulate up until the region bans the oldest cars.62
- 比什凯克 🇰🇬 吉尔吉斯斯坦Winter smog · 11月1日 – 3月1日(通常)Coal stoves in the private housing around the city plus an inversion in the bowl put Bishkek near the top of the world air-quality lists on winter mornings.62
……11月还有 9 个。
12月的冬季雾霾
- 瓦拉纳西 🇮🇳 印度Post-Diwali smog · 10月25日 – 2月10日(通常)Stubble burning upwind, firecrackers and a cold air trap put the plains under a brown haze from Diwali onward.92
- 台中市 🇹🇼 中华民国Autumn and winter haze · 10月15日 – 3月31日(通常)Once the summer winds drop, the mountains behind the city stop the air moving and central Taiwan's industry and power stations sit in it.90
- 达卡市 🇧🇩 孟加拉国Dry-season air · 11月15日 – 2月28日Brick kilns fire through the dry months, the construction dust never stops, and the city trades places with Delhi and Lahore at the top of the daily air rankings.87
- 阿格拉 🇮🇳 印度Winter smog season · 11月1日 – 1月31日(通常)Cold still air over the Doab holds in field smoke, brick kilns and traffic, and the monument can vanish from the far end of its own garden before ten.86
- 高雄市 🇹🇼 中华民国Winter air-quality season · 10月1日 – 3月31日(通常)The rain stops, the wind drops and the petrochemical belt on the north side has nowhere to go.84
- 拉合尔 🇵🇰 巴基斯坦Smog season · 10月15日 – 1月31日(通常)The province declares a smog season and acts on it: schools shut, offices go part-remote, brick kilns and building sites stop.83
- 伊斯兰堡 🇵🇰 巴基斯坦Winter haze from the plains · 11月1日 – 1月15日(通常)The Punjab smog does not stop at the motorway.80
- 成都市 🇨🇳 中华人民共和国Winter smog · 11月15日 – 2月28日The basin holds its own air all winter under an inversion.69
- 上海市 🇨🇳 中华人民共和国Winter haze · 11月15日 – 2月28日(通常)Still, cold weeks trap particulates over the delta and the skyline goes flat grey for days until a front clears it.68
- 德黑兰 🇮🇷 伊朗Winter inversion smog · 11月15日 – 2月28日(通常)Cold air traps the traffic exhaust against the mountains for days at a time and the government closes schools and offices when it gets bad.68
- 地拉那 🇦🇱 阿尔巴尼亚Winter air pollution · 11月15日 – 2月28日Old diesel cars in a basin ringed by hills, plus wood heating, and the winter readings climb well past what the city's reputation for mild weather suggests.67
- Pingyao 🇨🇳 中华人民共和国Heating-season smog · 11月15日 – 3月15日(通常)Shanxi is China's coal province and the central heating goes on in the middle of November.66
- 西安市 🇨🇳 中华人民共和国Winter smog · 11月15日 – 2月28日The Guanzhong basin traps its air under the Qinling mountains all winter, and Xi'an posts some of the worst readings in the country.63
- 普罗夫迪夫 🇧🇬 保加利亚Winter smog · 11月1日 – 3月10日(通常)Wood and coal stoves in the surrounding villages, plus an inversion that traps everything over the Thracian plain, give Plovdiv some of the worst winter particulate readings in the EU.61
- 都灵 🇮🇹 意大利Po valley smog season · 10月1日 – 3月31日The city sits in a bowl with the Alps on three sides, and winter inversions trap particulates for days.60
- 安卡拉 🇹🇷 土耳其Winter inversion · 11月15日 – 2月28日(通常)The city sits in a bowl and cold, still weather traps household heating smoke in it for days at a time.60
- 斯科普里 🇲🇰 北马其顿Winter air pollution · 11月1日 – 2月28日Household heating and traffic under a valley inversion make this one of the worst-affected capitals in Europe, and schools have been closed over it.59
- 米兰 🇮🇹 意大利Po valley smog season · 11月15日 – 2月28日(通常)The valley sits under the Alps with nowhere for the air to go, so still cold weeks stack particulate up until the region bans the oldest cars.57
- 贝尔格莱德 🇷🇸 塞尔维亚Winter smog · 11月1日 – 3月15日(通常)Household coal and wood, old cars and a windless inversion over the confluence put Belgrade near the top of the world air-quality tables on the worst January mornings.57
- 巴尼亚卢卡 🇧🇦 波斯尼亚和黑塞哥维那Winter heating smog · 11月15日 – 2月28日(通常)Solid-fuel heating plus a valley inversion parks the smoke over the city on still winter days, and January is reliably the worst of it.57
- 尼什 🇷🇸 塞尔维亚Winter heating smog · 12月1日 – 2月28日(通常)The same basin that traps the summer heat traps coal smoke from December to February, and the readings go from ordinary to genuinely unhealthy.57
- 索非亚 🇧🇬 保加利亚Winter smog · 11月1日 – 3月10日(通常)The city sits in a basin under Vitosha and the cold air does not move; wood and coal heating in the outer districts then fills it.55
- 斯图加特 🇩🇪 德国Valley inversion air · 11月15日 – 2月28日(通常)The city centre sits in a steep bowl with almost no through wind, which is why it spent years as Germany's worst spot for traffic particulates and still traps its own air on still winter days.53
- 诺维萨德 🇷🇸 塞尔维亚Winter air pollution · 11月15日 – 2月28日Cold, still days over the Pannonian flat trap household heating smoke and the city regularly logs some of the worst readings in Europe.53
- 普里什蒂纳 科索沃Winter air pollution · 11月1日 – 2月28日Two lignite power stations sit just outside the city and household heating adds to them, and cold still nights trap the lot in the basin.52
……12月还有 10 个。