diff --git a/src/views/statistics/Statistics/statistics/index.vue b/src/views/statistics/Statistics/statistics/index.vue
index 970fd59..1e323fb 100644
--- a/src/views/statistics/Statistics/statistics/index.vue
+++ b/src/views/statistics/Statistics/statistics/index.vue
@@ -1,5 +1,5 @@
 <template>
-  <div style="height: 100%">
+  <div style="height: 100%; overflow: hidden">
     <a-card :bordered="false" style="margin-left: 20px; height: 100%">
       <div class="layout-header">
         <a-row type="flex" :gutter="20" style="margin-bottom: 20px">
@@ -134,7 +134,7 @@ const commonOptions = {
     trigger: 'axis',
   },
   legend: {
-    inactiveColor: '#5f5f5f',
+    inactiveColor: 'rgba(153, 177, 189,.5)',
     lineStyle: {
       inactiveColor: '#333',
     },
@@ -181,12 +181,15 @@ const commonOptions = {
     },
     axisLabel: {
       color: '#ade6ee',
-      // color: '#5b9cba',
       formatter: (value, index) => {
         let val = value.split(' ').join('\n')
-        // if (index === 0) {
-        //   return '        ' + val
-        // }
+        if (index === 0) {
+          let arr = value.split(' ')
+          arr[0] = '                   ' + arr[0]
+          arr[1] = '                   ' + arr[1]
+          let str = arr.join('\n')
+          return str
+        }
         if (index === xDataLength - 1) {
           let arr = value.split(' ')
           arr[0] = arr[0] + '                   '
@@ -283,7 +286,10 @@ export default {
   methods: {
     moment,
     typeChange(val) {
+      this.disposeCharts()
       this.stationIds = []
+      // this.queryParams.dbName = undefined
+      this.queryParams.nuclideNames = []
       this.queryParams.systemType = val
       if (val == 'Particulate') this.menuName = 'Particulate'
       if (val == 'gamma') this.menuName = 'Noble Gas HPGe'
@@ -435,6 +441,13 @@ export default {
         this.$message.warning('No downloadable data')
       }
     },
+    // 清除图表
+    disposeCharts() {
+      if (this.chartOne) this.chartOne.dispose()
+      if (this.chartLeft) this.chartLeft.dispose()
+      if (this.chartRight) this.chartRight.dispose()
+      this.titleOne = this.titleLeft = this.titleRight = 'Nuclide History'
+    },
 
     filterOption(input, option) {
       return option.componentOptions.children[0].text.toLowerCase().indexOf(input.toLowerCase()) >= 0