在本研究中，研究人员对2004年至2016年国家大气污染防治计划区域背景站的氮氧化物和二氧化硫的季节变化、昼夜变化及其长期趋势进行了分析。二氧化硫和氮氧化物的平均混合比分别为5.7±8.4和14.2 ±12.4ppb。二氧化硫和氮氧化物混合比的季节变化呈现出相似的模式，即冬季为高峰，夏季为低谷。然而，二氧化硫和氮氧化物混合比的昼夜变化在所有季节都有很大差异，这表明二氧化硫和氮氧化物的来源不同，气象对其浓度的影响也不同。", "ds_source": "
上甸子气象站常规气象观测资料。", "ds_process_way": "
使用脉冲荧光SO2分析仪(型号43C-TL, Thermo Fisher Scientific, MA, USA)和化学发光NOx分析仪(型号42C-TL, Thermo Fisher Scientific, MA, USA)分别进行SO2和NOx混合比的原位测量。", "ds_quality": "
总体而言，2004-2016 年二氧化硫年均值呈显著下降趋势，年均值为-6.1%（R = -0.84，P < 0.01），与北京市二氧化硫年排放量的-6.3%非常接近；2008-2016 年二氧化硫年均值呈更大的下降趋势，年均值为-7.4%（R = -0.95，P < 0.01）。氮氧化物的年均值从 2005 年到 2010 年呈波动上升趋势，年均值上升了 +3.4% (R = 0.38, P = 0.40)，2010 年达到峰值（16.9 ppb），然后从 2010 年到 2016 年呈极其显著的波动下降趋势，年均值下降了-4.5% (R = 0.95, P < 0.01)。2010 年以后，氮氧化物混合比年均值与华北地区氮氧化物年排放量呈显著相关（R = 0.94，P < 0.01）。2011-2016年，上店子（SDZ）区域大气本底站氮氧化物混合比年均值的下降率（-4.8 % yr-1，R = -0.92，P < 0.01）低于国家重点实验室和北京氮氧化物年排放量的下降率（-8.8 % yr-1，R = -0.94，P < 0.01）（-9.0 % yr-1，R = -0.96，P < 0.01）。这表明，与二氧化硫相比，SDZ 的地表氮氧化物混合比对北京及其周边地区的减排影响更弱。", "ds_acq_start_time": "2005-01-01 00:00:00", "ds_acq_end_time": "2017-05-20 00:00:00", "ds_acq_place": "上甸子", "ds_acq_lon_east": 117.1, "ds_acq_lat_south": 40.61666666666667, "ds_acq_lon_west": 117.1, "ds_acq_lat_north": 40.61666666666667, "ds_acq_alt_low": 293.3, "ds_acq_alt_high": null, "ds_share_type": "open-access", "ds_total_size": 7068819, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "52189601-6c67-4cb6-8fd1-801289515ded.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "a3ce23a2-c353-4383-a544-65c8f218579f", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.15" ], "quality_level": 3, "publish_time": "2024-06-20 15:26:14", "last_updated": "2025-05-29 11:31:41", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.DVN.DB6525.2024", "i18n": { "en": { "title": "Replication Data for: Measurement report: Variations in surface SO2 and NOx mixing ratios from 2004 to 2016 at a background site in the North China Plain", "ds_format": "excel", "ds_source": "
Conventional meteorological observation data from Shangdianzi Meteorological Station.", "ds_quality": "
Overall, the annual average value of sulfur dioxide from 2004 to 2016 showed a significant downward trend, with an average annual value of -6.1% (R=-0.84, P<0.01),which is very close to the -6.3% annual sulfur dioxide emissions in Beijing; The annual average value of sulfur dioxide showed a greater downward trend from 2008 to 2016, with an average annual value of -7.4% (R=-0.95, P<0.01).The annual average value of nitrogen oxides showed a fluctuating upward trend from 2005 to 2010, with an increase of+3.4% (R=0.38, P=0.40), reaching its peak in 2010 (16.9 ppb), and then showing an extremely significant fluctuating downward trend from 2010 to 2016, with an annual average decrease of -4.5% (R=0.95, P<0.01). After 2010, there was a significant correlation between the annual average nitrogen oxide mixture ratio and the annual nitrogen oxide emissions in North China (R=0.94, P<0.01).From 2011 to 2016, the decline rate of the annual mean value of the mixed ratio of nitrogen oxides at the regional atmospheric background station in Shangdianzi (SDZ) (-4.8% yr-1, R=-0.92, P<0.01) was lower than the decline rate of the annual emissions of nitrogen oxides at the State Key Laboratory and Beijing (-8.8% yr-1, R=-0.94, P<0.01)(-9.0% yr-1, R=-0.96, P<0.01). This indicates that the surface nitrogen oxide mixture ratio of SDZ has a weaker emission reduction impact on Beijing and its surrounding areas compared to sulfur dioxide.", "ds_ref_way": "", "ds_abstract": "
This dataset presents the seasonal and diurnal variation characteristics and long-term trends of NOxand SO2in North China from 2004 to 2016.
", "ds_time_res": "时", "ds_acq_place": "Shangdianzi", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Use a pulsed fluorescence SO2analyzer (model 43C-TL, Thermo Fisher Scientific, MA, USA) and a chemiluminescence NOxanalyzer (model 42C-TL, Thermo Fisher Scientific, MA, USA) to perform in-situ measurements of the SO2and NOxmixing ratios, respectively.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "doi_reg_from": "reg_outside", "cstr_reg_from": "reg_outside", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "二氧化硫", "氮氧化物", "上甸子" ], "ds_subject_tags": [ "大气科学" ], "ds_class_tags": [], "ds_locus_tags": [ "上甸子" ], "ds_time_tags": [ 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 ], "ds_contributors": [ { "true_name": "林伟立", "email": "linwl@muc.edu.cn", "work_for": "中央民族大学生命与环境科学学院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "林伟立", "email": "linwl@muc.edu.cn", "work_for": "中央民族大学生命与环境科学学院", "country": "中国" } ], "ds_managers": [ { "true_name": "林伟立", "email": "linwl@muc.edu.cn", "work_for": "中央民族大学生命与环境科学学院", "country": "中国" } ], "category": "大气本底" }