Background

Although ~18 million people live within a mile from active oil and gas development (OGD) sites in the United States, epidemiological research on how OGD affects the health of nearby urban residents is sparse. Thousands of OGD sites are spread across Los Angeles (LA) County, California, home to the largest urban oil production in the country. Air pollution and noise from OGD may contribute to cardiovascular morbidity.

Objective

We examined the association between proximity to OGD and blood pressure in a diverse cohort of residents in LA.

Methods

We recruited residents in South LA who lived <1 km from an OGD site. We collected three blood pressure measurements for each participant and used the second and third measurements to calculate averages for systolic blood pressure (SBP) and diastolic blood pressure (DBP) separately. We conducted multivariable linear regression to examine the relationship between distance to OGD sites and continuous SBP and DBP, adjusting for BMI, smoking status, distance to freeway, sex, age, and use of antihypertension medications, with a random effect for household. We examined effect measure modification by BMI category and smoking category.

Results

Among the 623 adult participants, we found that for every 100 meter increase in distance from the OGD site, DBP was reduced by an average of 0.73 mmHg (95% CI: −1.26, −0.21) in this population. We observed stronger effects of proximity to OGD site on DBP among never smokers and among participants with a healthy BMI. The associations observed between proximity to OGD site and SBP were weaker but followed the same patterns as those for DBP.

Impact

Our study suggests that living near urban oil drilling sites is significantly associated with greater diastolic blood pressure in urban Los Angeles communities. This research improves understanding of impacts from living nearby drilling operations on the health and welfare of this community, which is critical to inform public health relevant strategies.

中文翻译：

---

心血管健康和靠近加利福尼亚州洛杉矶城市石油钻探

背景

尽管在美国约有 1800 万人居住在距活跃的石油和天然气开发 (OGD) 地点一英里的范围内，但关于 OGD 如何影响附近城市居民健康的流行病学研究却很少。数千个 OGD 站点分布在加利福尼亚州洛杉矶 (LA) 县，该县是美国最大的城市石油生产地。OGD 造成的空气污染和噪音可能会导致心血管疾病的发病。

客观的

我们研究了洛杉矶不同居民群体中 OGD 的接近程度与血压之间的关联。

方法

我们招募了洛杉矶南部居住距离 OGD 站点不到 1 公里的居民。我们为每位参与者收集了三次血压测量值，并使用第二次和第三次测量值分别计算收缩压 (SBP) 和舒张压 (DBP) 的平均值。我们进行了多变量线性回归，以检查距 OGD 站点的距离与连续 SBP 和 DBP 之间的关系，调整了 BMI、吸烟状况、距高速公路的距离、性别、年龄和抗高血压药物的使用，并对家庭进行随机效应。我们检查了 BMI 类别和吸烟类别对效果测量的修改。

结果

在 623 名成年参与者中，我们发现距 OGD 部位距离每增加 100 米，该人群的 DBP 平均降低 0.73 mmHg（95% CI：-1.26，-0.21）。我们观察到，在从不吸烟者和体重指数健康的参与者中，靠近 OGD 部位对 DBP 的影响更大。观察到 OGD 位点附近与 SBP 之间的关联较弱，但遵循与 DBP 相同的模式。

影响

我们的研究表明，居住在城市石油钻探地点附近与洛杉矶城市社区较高的舒张压显着相关。这项研究提高了人们对居住在附近钻井作业对该社区健康和福利的影响的了解，这对于为公共卫生相关策略提供信息至关重要。