Abstract: This paper, based on texts of air pollution control policies in JJJ city cluster, discusses the cooperative intentions of local governments and provides references for trans-regional air pollution  collaborative controls. This paper uses 2009-2019 air pollution policies in JJJ city cluster to establish an analytical framework composed of time, issuers, types, word frequency, tools and counts, and to determine its evolutionary rule. Viewing from time scale, the air pollution control policy undergoes preliminary developing stage, stable transitional stage and  stable control stage. Issuers vary with administrative regions, diversified in Beijing, Tianjin and Shijiazhuang, but comparatively single in other cities as governments. Text types are mainly notice, amounting to 73% with lower frequency in other forms.Word frequencies are highly concentrating on "pollution" "enterprise" and "control", respectively from 164, 127 and 110  policies. Policy tools are mainly on controlling, amounting to 43.57% in counts, far above marketing and volunteering tools. Policy counts vary with cities, less in collaboratively issuing policies, meaning a low collaboration in air pollution control and an insufficient interaction. This paper concludes that air pollution control in JJJ city cluster is a long-term and hard systematical project, which can be achieved by focusing on diversified control models, reconstructing new government network and improving collaborative controlling skills.A trans-regional collaborative mechanism of air pollution control needs to be formed to mutually control air pollution and stabilize trans-regional collaboration.

Key words: air pollution controls, policy texts, policy tool types, Beijing-Tianjin-Hebei city cluster

摘要： 通过梳理京津冀城市群大气污染治理政策的文本脉络，探讨各地方政府间的大气污染治理合作意向，为跨区域大气污染协同治理的实现提供参考依据。利用政策文本量化分析法，基于2009—2019年京津冀城市群大气污染治理政策，构建包含“时间、主体、类型、词频、工具、数量”的大气污染治理政策分析逻辑框架，明确当前大气污染治理政策演变规律。研究表明：1）从政策发文时间来看，京津冀城市群大气污染治理政策经历了初步发展期、平稳过渡期与治理稳定期3个阶段；2）从政策发文主体来看，各市发文主体差异化明显，北京、天津、石家庄三地呈现出多元化特征，其余地市较为单一，以市政府发文为主；3）从政策文本类型来看，大气污染治理政策主要集中于“通知”类型，占比高达73%，其余文本类型虽有涉及但频率较低；4）从政策文本词频来看，高频词主要集中于“污染”“企业”“防治”，政策文本来源分别为164件、127件、110件；5）从政策工具类型来看，主要偏重于管制型政策工具，占比达4357%，远高于市场型和自愿型政策工具；6）从政策发文数量来看，各城市发文数量差异较大，联合发文数量较少，大气污染协同治理程度较低，互动性明显不足。京津冀城市群大气污染治理是一项长期且艰巨的系统性工程，要重视多元治理模式、重构新型的政府网络关系以及进一步提升协同治理水平，共同应对大气污染治理问题，实现跨区域大气污染治理的常态化，从而形成大气污染跨区域联防联控联治的协同机制。

关键词: 大气污染治理, 政策文本, 政策工具类型, 京津冀城市群